Hans Cerfontain, Ph.D. - Publications

Affiliations: 
Chemistry University of Amsterdam, Amsterdam, Netherlands 
Area:
organic chemistry

260 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2010 Lindert HCAv, Doorn JAv, Bakker BH, Cerfontain H. Synthesis and properties of a series of strained [2.2]paracyclophane‐4,15‐disulfonimides Recueil Des Travaux Chimiques Des Pays-Bas. 115: 167-178. DOI: 10.1002/Recl.19961150303  0.306
2010 Stunnenberg F, Cerfontain H, Geenevasen JAJ, Hielkema W. Photochemistry and spectroscopy of three α‐oxo oxime ethers: 4‐(methoxyimino)‐2,2,3,3‐tetramethylcyclobutanone, 3,3,5‐trimethyl‐4(5H)‐isoxazolone and 6‐(benzyloxyimino)‐2,2,5,5‐tetramethylcyclohexanone Recueil Des Travaux Chimiques Des Pays-Bas. 110: 31-40. DOI: 10.1002/Recl.19911100202  0.398
2010 Stunnenberg F, Cerfontain H, Terpstra A. He I and He II photoelectron spectra and semi-empirical calculations on the three geometric isomers of 3,3,4,4-tetramethyl-1,2-bis(methoxyimino)cyclobutane Recueil Des Travaux Chimiques Des Pays-Bas. 110: 1-4. DOI: 10.1002/Recl.19911100102  0.333
2010 Buys TSV, Cerfontain H, Geenevasen JAJ. Photochemistry of α‐oxo oximes. Part 11: Photochemical E‐Z isomerization of two 2‐(methoxyimino)‐1‐indanones. Evidence for excimer formation upon direct excitation at λ 300 nm Recueil Des Travaux Chimiques Des Pays-Bas. 109: 531-536. DOI: 10.1002/Recl.19901091102  0.376
2010 Stunnenberg F, Rexwinkel R, Cerfontain H, Sevin A. Photochemical behaviour of cyclic s-cis α-oxo oxime ethers. Ab-initio investigation on ethanedial monooxime as model compound† Recueil Des Travaux Chimiques Des Pays-Bas. 109: 502-508. DOI: 10.1002/Recl.19901091003  0.384
2010 Buys TSV, Cerfontain H, Geenevasen JAJ, Stunnenberg F. Photochemistry of α-oxo oximes. Part 10: Photochemistry of three cyclic α-oxo oxime methyl ethers and their acyclic analogue at λ 254 nm† Recueil Des Travaux Chimiques Des Pays-Bas. 109: 491-501. DOI: 10.1002/Recl.19901091002  0.428
2010 Bakker BH, Schonk RM, Cerfontain H. Sulfonation of norbornene with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 109: 485-486. DOI: 10.1002/Recl.19901090908  0.361
2010 Koeberg‐Telder A, Cerfontain H. Acid-catalyzed transfer sulfonation of anisole using overcrowded polymethylbenzenesulfonic acids†‡ Recueil Des Travaux Chimiques Des Pays-Bas. 109: 41-45. DOI: 10.1002/Recl.19901090203  0.378
2010 Cerfontain H, Ansink HRW, Coenjaarts NJ, Graaf EJd, Koeberg‐Telder A. Reactions of a series of methyl ethers of the trihydroxybenzenes and three dimethoxyphenyl methanesulfonates with sulfur trioxide. The effect of initial sulfation on the sulfonation product distribution Recueil Des Travaux Chimiques Des Pays-Bas. 108: 445-451. DOI: 10.1002/Recl.19891081205  0.444
2010 Ansink HRW, Cerfontain H. Sulfonation of 1, 2‐(methylenedioxy)benzene, 1, 2‐(ethylenedioxy)benzene, 2‐methylanisole, 2, 3‐dihydrobenzofuran, chromane, benzo‐15‐crown‐5 and dibenzo‐30‐crown‐10 in concentrated sulfuric acid and with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 108: 395-403. DOI: 10.1002/Recl.19891081102  0.4
2010 Cerfontain H, Coenjaarts NJ, Koeberg‐Telder A. Reactions of the dihydroxybenzenes and their methyl ethers with sulfur trioxide. The effect of initial sulfation on the sulfonation product distribution Recueil Des Travaux Chimiques Des Pays-Bas. 108: 7-13. DOI: 10.1002/Recl.19891080103  0.344
2010 Koppes MJCM, Crabbendam AM, Cerfontain H. Photochemistry of two diphenyl β,γ‐enones and a series of methyl‐ and phenyl‐substituted α‐phenyl ketones Recueil Des Travaux Chimiques Des Pays-Bas. 107: 676-683. DOI: 10.1002/Recl.19881071205  0.409
2010 Geenevasen JAJ, Cerfontain H. 1,3,5‐Hexatriene photochemistry. The photo‐isomerization of (Z)‐3‐(6′,6′‐dimethyl‐2′‐methylenecyclohexylidene)‐1‐propene Recueil Des Travaux Chimiques Des Pays-Bas. 107: 631-634. DOI: 10.1002/Recl.19881071105  0.314
2010 Cerfontain H, Koeberg-Telder A. Sulfonation and sulfation on reaction of 1,4‐dihydroxybenzene and its methyl ethers in concentrated sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 107: 583-591. DOI: 10.1002/Recl.19881071003  0.436
2010 Koppes MJCM, Cerfontain H. Photochemical reactivities of cyclic α‐phenyl‐β,γ‐enones. Singlet 1,3‐acyl shift, decarbonylation and unquenchable oxa‐di‐π‐methane reactions upon direct irradiation Recueil Des Travaux Chimiques Des Pays-Bas. 107: 549-562. DOI: 10.1002/Recl.19881070906  0.39
2010 Koppes MJCM, Beentjes PCJ, Cerfontain H. Photochemical reactivity of α‐phenyl β,γ‐enones. Singlet 1,3‐acyl shift, triplet aromatic di‐π‐methane (DPM) rearrangement and triplet aryl‐carbonyl bridging Recueil Des Travaux Chimiques Des Pays-Bas. 107: 313-324. DOI: 10.1002/Recl.19881070404  0.435
2010 Cerfontain H, Geenevasen JAJ. Photochemical reactions of 1‐acetyl‐3‐methylbicyclo[1.1.0]butane Recueil Des Travaux Chimiques Des Pays-Bas. 105: 386-394. DOI: 10.1002/Recl.19861051012  0.395
2010 Wit Pd, Kruk C, Cerfontain H. Sulfur trioxide sulfodeprotonation of the rigidly bridged 1,6:8,13‐propane‐1,3‐diylidene[14]annulene Recueil Des Travaux Chimiques Des Pays-Bas. 105: 266-271. DOI: 10.1002/Recl.19861050907  0.426
2010 Koppes MJCM, Cerfontain H. Mechanistic photochemical studies on the 1,3‐acyl shift and oxa‐di‐π‐methane rearrangement of two β,γ·γ′,δ′‐dienones Recueil Des Travaux Chimiques Des Pays-Bas. 104: 272-276. DOI: 10.1002/Recl.19851041006  0.343
2010 Cerfontain H. Sulfur trioxide sulfonation of aromatic hydrocarbons Recueil Des Travaux Chimiques Des Pays-Bas. 104: 153-165. DOI: 10.1002/Recl.19851040602  0.355
2010 Visser CP, Cerfontain H, Geenevasen JAJ, Jorritsma R. Photochemistry of dienones. Part 141. The photochemistry of some 9‐demethylated ionyl and ionylidene compounds; a search for, and an example of, η‐hydrogen abstraction Recueil Des Travaux Chimiques Des Pays-Bas. 104: 101-108. DOI: 10.1002/Recl.19851040402  0.431
2010 Wit Pd, Lambrechts HJA, Cerfontain H. On the bromination of 1,2,3‐triphenylazulene Recueil Des Travaux Chimiques Des Pays-Bas. 104: 68-69. DOI: 10.1002/Recl.19851040303  0.346
2010 Visser CP, Wel Hvd, Cerfontain H. Photochemistry of dienones. Part 13. Photochemistry of the valeryl analogues of (E)‐α‐ and (E)‐β‐ionone; absence of Norrish type II processes Recueil Des Travaux Chimiques Des Pays-Bas. 102: 355-358. DOI: 10.1002/Recl.19831020704  0.392
2010 Visser CP, Cerfontain H. Photochemistry of dienones. Part 12. Photochemistry of (E)‐α‐ and (E)‐β‐damascone Recueil Des Travaux Chimiques Des Pays-Bas. 102: 307-311. DOI: 10.1002/Recl.19831020606  0.377
2010 Visser CP, Wel Hvd, Cerfontain H. Photochemistry of dienones. Part 11. Photochemistry of the pivaloyl analogues of (E)‐α‐ and (E)‐β‐ionone Recueil Des Travaux Chimiques Des Pays-Bas. 102: 302-306. DOI: 10.1002/Recl.19831020605  0.368
2010 Lambrechts HJA, Cerfontain H. Solutes in sulfuric acid. Part IX. Effect of para‐substitution on the ionization of the oxonium ions of phenol and anisole Recueil Des Travaux Chimiques Des Pays-Bas. 102: 299-301. DOI: 10.1002/Recl.19831020604  0.388
2010 Koeberg‐Telder A, Lambrechts HJA, Cerfontain H. Solutes in sulfuric acid. Part VIII. Protonation of phenol, 4‐fluorophenol and the 2‐ and 4‐sulfonates of anisole and phenol in concentrated aqueous sulfuric acid; determination of pKa values by means of 13C NMR Recueil Des Travaux Chimiques Des Pays-Bas. 102: 293-298. DOI: 10.1002/Recl.19831020603  0.417
2010 Verheijdt PL, Cerfontain H. Photochemistry of α,α,ω,ω-tetramethyl-1,2-cycloalkanediones; influence of the conformation of the diketo moiety on the photochemical behaviour† Recueil Des Travaux Chimiques Des Pays-Bas. 102: 173-181. DOI: 10.1002/Recl.19831020309  0.418
2010 Cerfontain H, Koeberg‐Telder A, Laali K, Lambrechts HJA, Wit Pd. Aromatic sulfonation 85. Halogen directing and steric effects in the sulfonation of the twelve halogenotoluenes and some related compounds Recueil Des Travaux Chimiques Des Pays-Bas. 101: 390-392. DOI: 10.1002/Recl.19821011104  0.422
2010 Cerfontain H, Laali K, Lambrechts HJA. Aromatic sulfonation 84. Sulfonation of bi‐ and tri‐phenylene Recueil Des Travaux Chimiques Des Pays-Bas. 101: 313-316. DOI: 10.1002/Recl.19821010905  0.435
2010 Verheidt PL, Kruk C, Cerfontain H. Ring inversion in some fully α‐methylated cycloalkane‐1,2‐diones Recueil Des Travaux Chimiques Des Pays-Bas. 101: 85-87. DOI: 10.1002/Recl.19821010302  0.307
2010 Koeberg‐Telder A, Cerfontain H. Reactions of overcrowded polymethylbenzenedisulfonic acids in concentrated aqueous sulfuric acid; protiodesulfonation and intramolecular sulfonic anhydride formation Recueil Des Travaux Chimiques Des Pays-Bas. 101: 41-47. DOI: 10.1002/Recl.19821010104  0.404
2010 Lambrechts HJA, Cerfontain H. On the relative reactivity of the C C double bond and the [10] annulene moiety versus SO3† Recueil Des Travaux Chimiques Des Pays-Bas. 100: 291-292. DOI: 10.1002/Recl.19811000710  0.34
2010 Weerdt AJAvd, Cerfontain H. Photochemistry of acyclic β,γ-unsaturated ketones. The effect of substituents at the α-C and the carbonyl group on the occurrence of the oxa-di-π-methane rearrangement Recueil Des Travaux Chimiques Des Pays-Bas. 96: 247-248. DOI: 10.1002/Recl.19770960909  0.357
2010 Wageningen Av, Cerfontain H, Nibbering NMM. Stereochemical aspects in mass spectrometry: Comparison of the mass spectra of some (E)‐ and (Z)‐ionone and ‐ionol derivatives Recueil Des Travaux Chimiques Des Pays-Bas. 93: 43-46. DOI: 10.1002/Recl.19740930205  0.323
2010 Ris C, Cerfontain H. Aromatic sulfonation. Part 33: Effects of sulfonic acid addenda upon the isomer distribution in the sulfonation of toluene with sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 91: 583-590. DOI: 10.1002/Recl.19720910510  0.401
2010 Albada MPv, Cerfontain H, Koeberg‐Telder A. Aromatic sulfonation 31: (Isomer distribution in the homogeneous sulfonation of toluene with sulfur trioxide and some acidic sulfonating reagents) Recueil Des Travaux Chimiques Des Pays-Bas. 91: 33-36. DOI: 10.1002/Recl.19720910105  0.379
2010 Koeberg‐Telder A, Cerfontain H. Aromatic sulfonation. Part 30: Sulfonation of anthracene with sulfur trioxide‐dioxane; slow proton transfer in the formation of 9‐anthracenesulfonic acid Recueil Des Travaux Chimiques Des Pays-Bas. 91: 22-32. DOI: 10.1002/Recl.19720910104  0.338
2010 Koeberg‐Telder A, Cerfontain H. Aromatic sulfonation 28: Degree of ortho-substitution in the sulfonation of toluene with sulfur trioxide, methanepyrosulfonic acid and fuming sulfuric acid. A mechanistic picture† Recueil Des Travaux Chimiques Des Pays-Bas. 90: 193-206. DOI: 10.1002/Recl.19710900209  0.405
2010 Kort CWF, Cerfontain H. Aromatic sulfonation 25: Kinetics and mechanism of the sulfonation of fluoro-, bromo- and iodo-benzene in aqueous sulfuric acid† Recueil Des Travaux Chimiques Des Pays-Bas. 88: 860-864. DOI: 10.1002/Recl.19690880712  0.407
2010 Prinsen AJ, Cerfontain H. Aromatic sulfonation. Part 24: Kinetics and mechanism of the sulfonation of o‐ and m‐xylene in aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 88: 833-844. DOI: 10.1002/Recl.19690880709  0.311
2010 Bosscher JK, Cerfontain H. Aromatic sulfonation 20: The sulfonation of some chlorobenzenes with sulfur trioxide in nitromethane as solvent Recueil Des Travaux Chimiques Des Pays-Bas. 87: 873-887. DOI: 10.1002/Recl.19680870803  0.384
2010 Overwater JJI, Cerfontain H. The photolysis of cyclopropanecarbaldehyde at 313 nm, a possible example of triplet‐triplet annihilation Recueil Des Travaux Chimiques Des Pays-Bas. 87: 73-85. DOI: 10.1002/Recl.19680870113  0.3
2010 Kort CWF, Cerfontain H. Aromatic sulfonation. Part XIX: Two mechanisms of sulfonation in aqueous sulfuric acid† Recueil Des Travaux Chimiques Des Pays-Bas. 87: 24-32. DOI: 10.1002/Recl.19680870104  0.395
2010 Wanders ACM, Cerfontain H. Kinetics of the desulfonation of benzenesulfonic acid and the toluenesulfonic acids in aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 86: 1199-1216. DOI: 10.1002/Recl.19670861106  0.401
2010 Vries Hd, Cerfontain H. Aromatic sulfonation. Part XVIII: Ortho‐substitution in the sulfonation of monoalkylbenzenes with sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 86: 873-878. DOI: 10.1002/Recl.19670860810  0.4
2010 Kort CWF, Cerfontain H. Aromatic sulfonation. Part XVII: Kinetics and mechanism of the sulfonation of chlorobenzene in aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 86: 865-872. DOI: 10.1002/Recl.19670860809  0.421
2010 Cerfontain H, Telder A. Aromatic Sulfonation. Part XVI: Sulfonation of naphthalene and its monosulfonic acids in concentrated aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 86: 527-536. DOI: 10.1002/Recl.19670860507  0.38
2010 Wanders ACM, Cerfontain H, Kort CWF. Kinetics of the isomerization of toluenesulfonic acids in aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 86: 301-317. DOI: 10.1002/Recl.19670860311  0.391
2010 Cerfontain H, Arends JM. Aromatic sulfonation XV: Isomerization and dealkylation of t-butylbenzenesulfonic acids in aqueous sulfuric acid† Recueil Des Travaux Chimiques Des Pays-Bas. 85: 358-366. DOI: 10.1002/Recl.19660850406  0.366
2010 Arends JM, Cerfontain H. Aromatic sulfonation XIV orientation in the homogeneous sulfonation of t‐butylbenzene in sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 85: 93-101. DOI: 10.1002/Recl.19660850115  0.382
2010 Cerfontain H, Telder A. Aromatic sulfonation XIII determination of the kinetic isotope effect of hydrogen in the sulfonation and sulfonylation of benzene Recueil Des Travaux Chimiques Des Pays-Bas. 84: 1613-1616. DOI: 10.1002/Recl.19650841213  0.334
2010 Cerfontain H. Aromatic sulfonation XII: Kinetics of the sulfonation of p- and o-toluenesulfonic acid in aqueous and fuming sulfuric acid† Recueil Des Travaux Chimiques Des Pays-Bas. 84: 551-559. DOI: 10.1002/Recl.19650840503  0.407
2010 Cerfontain H, Telder A. The solubility of toluene and benzene in concentrated aqueous sulfuric acid; implications to the kinetics of aromatic sulfonation Recueil Des Travaux Chimiques Des Pays-Bas. 84: 545-550. DOI: 10.1002/Recl.19650840502  0.375
2010 Cerfontain H. Solubility of aromatic hydrocarbons in aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 84: 491-502. DOI: 10.1002/Recl.19650840414  0.373
2010 Cerfontain H, Telder A, Vollbracht L. Aromatic sulfonation XI: Sulfonation of benzene and toluene with sulfur trioxide; sulfone formation and sulfonic acid isomer distribution. Recueil Des Travaux Chimiques Des Pays-Bas. 83: 1103-1121. DOI: 10.1002/Recl.19640831102  0.464
2010 Cerfontain H. The radical induced oxidation of acetaldehyde Recueil Des Travaux Chimiques Des Pays-Bas. 83: 919-929. DOI: 10.1002/Recl.19640830907  0.355
2010 Cerfontain H, Hofman HJ, Telder A. Aromatic sulfonation X: Determination of the kinetic isotope effect of hydrogen in the sulfonation and sulfonylation of benzene remarks on hydrogen exchange between benzene and benzenesulfonic acid Recueil Des Travaux Chimiques Des Pays-Bas. 83: 493-508. DOI: 10.1002/Recl.19640830509  0.384
2010 Cerfontain H, Sixma FLJ, Vollbracht L. Aromatic sulphonation IXheterogeneous sulphonation of toluene with aqueous sulphuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 83: 226-232. DOI: 10.1002/Recl.19640830303  0.367
2010 Cerfontain H, Kaandorp AW, Vollbracht L. Aromatic sulphonation VIII: Partial rate factors in the sulphonation of toluene with aqueous sulphuric acid† Recueil Des Travaux Chimiques Des Pays-Bas. 82: 923-930. DOI: 10.1002/Recl.19630820910  0.398
2010 Cerfontain H, Sixma FLJ, Vollbracht L. Aromatic sulphonation VII†: Orientation in the homogeneous sulphonation of toluene in aqueous and fuming sulphuric acid‡ Recueil Des Travaux Chimiques Des Pays-Bas. 82: 659-670. DOI: 10.1002/Recl.19630820704  0.408
2010 Cerfontain H, Kaandorp AW, Sixma FLJ. Aromatic sulphonation VI: A kinetic study on the sulphonation and dealkylation of t‐butylbenzene in concentrated aqueous sulphuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 82: 565-578. DOI: 10.1002/Recl.19630820604  0.392
2010 Kaandorp AW, Cerfontain H, Sixma FLJ. Aromatic sulphonation V: A kinetic study on the sulphonation of toluene, ethylbenzene and isopropylbenzene in aqueous sulphuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 82: 113-120. DOI: 10.1002/Recl.19630820202  0.39
2010 Kaandorp AW, Cerfontain H, Sixma FLJ. Aromatic sulphonation IV Kinetics and mechanism of the sulphonation of benzene in aqueous sulphuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 81: 969-992. DOI: 10.1002/Recl.19620811108  0.419
2010 Cerfontain H. Aromatic sulphonation III: Sulphonation of benzenesulphonic acid and m‐toluenesulphonic acid in fuming sulphuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 80: 296-306. DOI: 10.1002/Recl.19610800307  0.423
2010 Cerfontain H. Fuming sulphuric acid: Dependence of the concentration of sulphur trioxide and its activity coefficient on the composition of oleum Recueil Des Travaux Chimiques Des Pays-Bas. 80: 257-268. DOI: 10.1002/Recl.19610800305  0.325
2010 Vollbracht L, Cerfontain H, Sixma FLJ. Aromatic sulphonation II: Orientation in the sulphonation of toluene Recueil Des Travaux Chimiques Des Pays-Bas. 80: 11-19. DOI: 10.1002/Recl.19610800103  0.353
2010 Cerfontain H, Kaandorp AW, Sixma FLJ. Aromatic sulphonation I sulphonation of benzene and toluene in aqueous sulphuric acid: (Preliminary communication) Recueil Des Travaux Chimiques Des Pays-Bas. 79: 935-936. DOI: 10.1002/Recl.19600790906  0.334
1999 Bakker BH, Cerfontain H. Sulfonation of Alkenes by Chlorosulfuric Acid, Acetyl Sulfate, and Trifluoroacetyl Sulfate European Journal of Organic Chemistry. 1999: 91-96. DOI: 10.1002/(Sici)1099-0690(199901)1999:1<91::Aid-Ejoc91>3.0.Co;2-J  0.419
1997 Cerfontain H, Koeberg-Telder A, Van Lindert HCA, Bakker BH. Aromatic sulfonation, 131. Formation of sulfonic acids and sulfonic anhydrides in the sulfur trioxide sulfonation of some dialkylbenzenes and 1,ω-diarylalkanes Liebigs Annales. 2227-2233. DOI: 10.1002/Jlac.199719971109  0.399
1997 Cerfontain H, Koeberg-Telder A, Bakker BH, Mitchell RH, Tashiro M. Photoreactions of trans‐10b,10c‐Dimethyl‐10b,10c‐dihydropyrenes Liebigs Annalen. 1997: 873-878. DOI: 10.1002/Jlac.199719970513  0.407
1997 Cerfontain H, Bakker BH, Koeberg-Telder A, Wilmes O. Aromatic sulfonation, 130: Relative intramolecular reactivity of the insulated π double bond and the 14π annulene perimeter toward Sulfur trioxide in the sulfonation of isopyrenes Liebigs Annales. 49-53. DOI: 10.1002/Jlac.199719970110  0.435
1996 Cerfontain H, Koeberg-Telder A, Mitchell RH, Khalifa N, Tashiro M. Sulfonation of trans-10b,10c-dimethyl-10b,10c-dihydropyrene and its 2,7-di-tert-butyl derivative with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas-Journal of the Royal Netherlands. 115: 293-301. DOI: 10.1002/Recl.19961150506  0.411
1995 Ansink HRW, Cerfontain H. Reaction of cyclopropylbenzene and cyclopropyl phenyl ketone with sulfur trioxide1-3 Phosphorus, Sulfur, and Silicon and the Related Elements. 101: 295-302. DOI: 10.1080/10426509508042531  0.373
1995 Cerfontain H, Kramer JB, Schonk RM, Bakker BH. Reactivity and regioselectivity in the reaction of allylsilanes and some analogous all-carbon alkenes with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 114: 410-420. DOI: 10.1002/Recl.19951140907  0.396
1994 Cerfontain H, Bakker BH, Zout Y. On the positional reactivity order in the sulfonation of biphenyl and a series of oxy derivatives1,2 Phosphorus, Sulfur, and Silicon and the Related Elements. 92: 231-237. DOI: 10.1080/10426509408021477  0.383
1994 Cerfontain H, Koeberg-Telder A, Van Lindert HCA, Bakker BH, Wit PD. Sulfur trioxide sulfonation of diphenyl ether, diphenyl sulfide, dibenzo[b,e][1,4]dioxin, and xanthene Phosphorus, Sulfur, and Silicon and the Related Elements. 97: 239-244. DOI: 10.1080/10426509408020747  0.354
1994 Cerfontain H, Zou Y, Bakker BH. On the positional reactivity order in the sulfonation of phenyl‐and naphthyl‐substituted naphthalenes with SO3 Recueil Des Travaux Chimiques Des Pays-Bas. 113: 517-523. DOI: 10.1002/Recl.19941131105  0.32
1994 Cerfontain H, Koeberg-Telder A, Vogel E, Wilmes O. Dimethylsulfonio- and sulfo-de-hydrogenation on reaction of azuleno[2,1,8-ija]azulene (isopyrene) with the dimethyl sulfoxide-sulfur trioxide complex as reagent Recueil Des Travaux Chimiques Des Pays-Bas. 113: 288-292. DOI: 10.1002/Recl.19941130505  0.418
1993 Ansink HRW, Graaf EJD, Zelvelder E, Cerfontain H. Reactions of SO2X mono-substituted arenes with SO3 in nitromethane: electronic and steric directing effects of the sulfonic acid group and some model substituents Canadian Journal of Chemistry. 71: 210-215. DOI: 10.1139/V93-031  0.402
1993 Ansink HRW, Zelvelder E, De Graaf EJ, Cerfontain H. Aromatic sulfonation. Part 120. Reaction of dihydroxy- and dimesyloxy-naphthalenes with sulfur trioxide in nitromethane. Directing effects and the influence of initial sulfation on the product distributions Journal of the Chemical Society, Perkin Transactions 2. 721-727. DOI: 10.1039/P29930000721  0.493
1993 Cerfontain H, Koeberg-Telder A, Lerch U. Electrophilic substitution of two monohomoperylenes and perylene Recueil Des Travaux Chimiques Des Pays-Bas. 112: 584-594. DOI: 10.1002/Recl.19931121105  0.442
1993 Schonk RM, Meijer CW, Bakker BH, Zöllner S, Cerfontain H, de Meijere A. Reactions of methylenecycloalkanes and cycloalkylidenecycloalkanes with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 112: 457-461. DOI: 10.1002/Recl.19931120705  0.356
1993 Schonk RM, Lembeck I, Bakker BH, Cerfontain H. Intramolecular competition in Friedel‐Crafts sulfocyclization of ω‐(1‐naphthyl)‐n‐alkenes and 1,7‐diphenyl‐3‐heptene on reaction with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 112: 247-254. DOI: 10.1002/Recl.19931120402  0.424
1993 Ansink HRW, Zelvelder E, Cerfontain H. Sulfonation of a series of naphthalenes containing two different oxy substituents Recueil Des Travaux Chimiques Des Pays-Bas. 112: 216-225. DOI: 10.1002/Recl.19931120303  0.461
1993 Ansink HRW, Zelvelder E, Cerfontain H. Sulfonation of 1- and 2-naphthol and their methanesulfonate esters with sulfur trioxide. The influence of initial sulfation on the sulfo-product composition Recueil Des Travaux Chimiques Des Pays-Bas. 112: 210-215. DOI: 10.1002/Recl.19931120302  0.391
1993 Schonk RM, Bakker BH, Cerfontain H. Reactions of cumulated and conjugated dienes with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 112: 201-209. DOI: 10.1002/Recl.19931120301  0.344
1992 Ansink HRW, de Graaf EJ, Zelvelder E, Cerfontain H. Reaction of (di)methoxynaphthalenes and 2,3-(ethylenedioxy)naphthalene with sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 111: 499-506. DOI: 10.1002/Recl.19921111201  0.402
1992 Schonk RM, Bakker BH, Cerfontain H. Reactions of alkenoic acids with sulfur trioxide; sulfonation and sulfo-lactonization Recueil Des Travaux Chimiques Des Pays-Bas. 111: 478-489. DOI: 10.1002/Recl.19921111103  0.431
1992 Stunnenberg F, Cerfontain H, Rexwinkel RB. Spectroscopy and photochemistry of a series of alkyl-substituted O- and p-benzoquinones and their mono-oxime O-methyl ethers Recueil Des Travaux Chimiques Des Pays-Bas. 111: 438-447. DOI: 10.1002/Recl.19921111005  0.349
1992 Schonk RM, Bakker BH, Cerfontain H. Reactions of ω-phenylalkenes with sulfur trioxide; sulfonation and Friedel-Crafts type of cyclization Recueil Des Travaux Chimiques Des Pays-Bas. 111: 389-401. DOI: 10.1002/Recl.19921110903  0.368
1992 van Lindert HCA, Koeberg-Telder A, Cerfontain H. Sulfonation of [2.2]paracyclophane; structures and modes of formation of the products Recueil Des Travaux Chimiques Des Pays-Bas. 111: 379-388. DOI: 10.1002/Recl.19921110902  0.382
1992 Ansink HRW, Cerfontain H. Reactions of sulfur trioxide with benzene derivatives containing a deactivating oxy substituent Recueil Des Travaux Chimiques Des Pays-Bas. 111: 414. DOI: 10.1002/Recl.19921110503  0.433
1992 Bakker BH, Schonk RM, Cerfontain H. Reactions of β-sultones and carbyl sulfates with nucleophiles Recueil Des Travaux Chimiques Des Pays-Bas. 111: 188-191. DOI: 10.1002/Recl.19921110405  0.397
1992 Ansink HRW, Cerfontain H. Sulfonation of anisole, phenol, toluene and related alkyl and alkoxy derivatives with SO3. The influence of the solvent system on the reactivity and the sulfonic acid product distribution Recueil Des Travaux Chimiques Des Pays-Bas. 111: 183-187. DOI: 10.1002/Recl.19921110404  0.448
1992 Stunnenberg F, Cerfontain H. Photochemistry of α-bis(methoxyimino)alkanes Recueil Des Travaux Chimiques Des Pays-Bas. 111: 79-87. DOI: 10.1002/Recl.19921110204  0.41
1992 Schonk RM, Bakker BH, Cerfontain H. Reactions of styrene and derivatives with sulfur trioxide; characterization and chemistry of the initial products Recueil Des Travaux Chimiques Des Pays-Bas. 111: 49-55. DOI: 10.1002/Recl.19921110106  0.372
1992 Stunnenberg F, Cerfontain H, Goubitz K, Heydenrijk D, Stam CH. UV spectroscopy and structures of α-bis(methoxyimino)alkanes Recueil Des Travaux Chimiques Des Pays-Bas. 111: 41-48. DOI: 10.1002/Recl.19921110105  0.334
1991 Schonk RM, Bakker BH, Cerfontain H. REACTIONS OF ALKENES AND ω-PHENYLALKENES WITH SULFUR TRIOXIDE; SULFONATION AND FRIEDEL-CRAFTS TYPE OF CYCLIZATION Phosphorus Sulfur and Silicon and the Related Elements. 59: 173-176. DOI: 10.1080/10426509108045717  0.415
1991 Ansink HRW, Cerfontain H. Reversibility in the sulfonation of 3, 5-dimethoxyphenol and its methanesulfonate ester12 Phosphorus, Sulfur, and Silicon and the Related Elements. 63: 335-339. DOI: 10.1080/10426509108036838  0.392
1989 Cerfontain H, Koeberg-telder A. Sulfonation And Sulfation In The Reaction Of 4-Methylphenol With Concentrated Sulfuric Acid Phosphorus Sulfur and Silicon and the Related Elements. 42: 223-225. DOI: 10.1080/10426508908054898  0.344
1989 Bakker BH, Cerfontain H, Tomassen HPM. Aliphatic sulfonation. 3. Reactions of adamantylidenealkanes and cyclopropylidenealkanes with sulfur trioxide Journal of Organic Chemistry. 54: 1680-1684. DOI: 10.1021/Jo00268A034  0.338
1989 Bakker BH, Cerfontain H. Sulfonation of alkenes with sulfur trioxide; reversible stereospecific β-sultone formation Tetrahedron Letters. 30: 5451-5454. DOI: 10.1016/S0040-4039(01)80591-8  0.326
1988 Cerfontain H, Koeberg-Telder A. Methylation of polymethylbenzenesulfonic acids by hexamethylbenzene and pentamethylbenzenesulfonic acid in concentrated sulfuric acid Canadian Journal of Chemistry. 66: 162-167. DOI: 10.1139/V88-025  0.364
1988 de Wit P, Woldhuis AF, Cerfontain H. On the intermediacy of phenyl hydrogen sulfates in the sulfonation of phenols. Sulfonation of phenol, anisole, methyl phenyl sulfate, the 2-halogenophenols, a series of phenyl methanesulfonates together with 2,6-dimethylaniline and its N-methylsulfonyl derivative Recueil Des Travaux Chimiques Des Pays-Bas. 107: 668-675. DOI: 10.1002/Recl.19881071204  0.44
1988 Cerfontain H, Koeberg-Telder A. Sulfonation and sulfation of 1,3-dihydroxybenzene and its methyl ethers in concentrated sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 107: 543-548. DOI: 10.1002/Recl.19881070905  0.392
1988 Goossens HD, Lambrechts HJA, Cerfontain H, de Wit P. Sulfonation and sulfation in reactions of C-methylated phenols and anisoles with sulfur trioxide. 4-Substituted phenyl hydrogen sulfates: effective reagents for transsulfonation Recueil Des Travaux Chimiques Des Pays-Bas. 107: 426-430. DOI: 10.1002/Recl.19881070606  0.456
1988 de Wit P, Cerfontain H. Sulfonation of chloro- and dichloroanisoles with concentrated aqueous sulfuric acid and sulfur trioxide. Demethylation of chloroanisolesulfonic acids in sulfuric acid systems Recueil Des Travaux Chimiques Des Pays-Bas. 107: 418-425. DOI: 10.1002/Recl.19881070605  0.436
1988 Koppes MJCM, Cerfontain H. Photochemical isomerizations of 2‐vinyl‐2‐phenylcyclohexanone; ketene, alkenal and 1,3‐acyl shift product formation from the excited singlet state Recueil Des Travaux Chimiques Des Pays-Bas. 107: 412-417. DOI: 10.1002/Recl.19881070604  0.431
1988 Cerfontain H, Coenjaarts NJ, Koeberg-Telder A. Sulfonation and sulfation on reaction of 1,2-dihydroxybenzene and its methyl ethers in concentrated aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 107: 325-330. DOI: 10.1002/Recl.19881070405  0.403
1988 de Wit P, Cerfontain H. Sulfonation and sulfation in the reactions of the chloro- and dichlorophenols, 3-fluorophenol and (2,3-, 2,4- and 3,4-dichlorophenoxy)acetic acid with concentrated aqueous sulfuric acid and sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 107: 121-124. DOI: 10.1002/Recl.19881070303  0.433
1987 Cerfontain H, Koeberg-Telder A, Lambrechts HJA, Lindner W, Zhang SZ, Vogel E. Aromatic sulfonation. 99. Relative intramolecular reactivity of a .pi. double bond and the 10.pi. annulene moiety toward sulfur trioxide: sulfonation of 11-methylene-1,6-methano[10]annulene, 12,12-dimethyl-11-methylene-1,6-methano[10]annulene, and 11-oxo-1,6-methano[10]annulene with sulfur trioxide The Journal of Organic Chemistry. 52: 3373-3378. DOI: 10.1021/Jo00391A037  0.37
1987 Bakker BH, Cerfontain H. Sulfonation of alkenes with an excess of sulfur trioxide; stereospecific formation of carbyl sulfates Tetrahedron Letters. 28: 1703-1706. DOI: 10.1016/S0040-4039(00)95399-1  0.309
1987 Bakker BH, Cerfontain H. Sulfonation of alkenes with sulfur trioxide; stereospecific β-sultone formation Tetrahedron Letters. 28: 1699-1702. DOI: 10.1016/S0040-4039(00)95398-X  0.382
1987 Koeberg-Telder A, Cerfontain H. Aromatic isomerizations and related reactions. Part 61 reactions of the tetra- and pentamethylbenzenesulfonic acids and hexamethylbenzene in concentrated sulfuric acid; the mechanism of the Jacobsen reaction Recueil Des Travaux Chimiques Des Pays-Bas. 106: 85-103. DOI: 10.1002/Recl.19871060304  0.446
1986 Koeberg-Telder A, Cerfontain H. Aromatic sulfonation. 97. Isomerization and sulfodeprotonation in the reaction of 1,6-oxido[10]annulene, 1,6-imino[10]annulene, their isomers 1-naphthol and 1-aminonaphthalene, and 11-oxo-1,6-methano[10]annulene with sulfur trioxide Journal of Organic Chemistry. 51: 2563-2567. DOI: 10.1021/Jo00363A030  0.385
1986 Buys TSV, Cerfontain H, Geenevasen JAJ, Stunnenberg F. Photochemistry of α-oxo oximes. Part 9. The γ-hydrogen abstraction in α-oxo oxime ethers† Recueil Des Travaux Chimiques Des Pays-Bas. 105: 188-194. DOI: 10.1002/Recl.19861050606  0.375
1986 Buys TSV, Cerfontain H, Stunnenberg F, Louwen JN. The UV absorption and He1 and He11 photoelectron spectra of some (E)‐ and (Z)‐α‐oxo oxime O‐methyl ethers and related compounds Recueil Des Travaux Chimiques Des Pays-Bas. 105: 54-62. DOI: 10.1002/Recl.19861050203  0.342
1986 Buys TSV, Cerfontain H, Geenevasen JAJ, Stunnenberg F. Photochemistry of α-Oxo Oximes. Part 9. The γ-Hydrogen Abstraction in α-Oxo Oxime Ethers. Cheminform. 17. DOI: 10.1002/Chin.198642117  0.339
1986 Buys TSV, Cerfontain H, Stunnenberg F, Louwen JN. The UV Absorption and He(I) and He(II) Photoelectron Spectra of Some (E)- and (Z)-α-Oxo Oxime O-Methyl Ethers and Related Compounds Cheminform. 17. DOI: 10.1002/Chin.198622041  0.347
1985 Wit PD, Cerfontain H, Fischer A. Sulfur trioxide sulfonation of the five alkanonaphthalenes acenaphthene, perinaphthane, 1,2,3,6,7,8-hexahydropyrene, 5,6,7,8-tetrahydrocyclohepta-acenaphthene, and 1,2,3,4,7,8,10-octahydrodicyclohepta[de,ij]naphthalene Canadian Journal of Chemistry. 63: 2294-2297. DOI: 10.1139/V85-378  0.356
1985 Koeberg-Telder A, Lambrechts HJA, Cerfontain H. Aromatic sulphonation. Part 94. Sulphonation and sulphation of the three 2- and 4-hydroxy- and 2- and 4-methoxy-benzenesulphonic acids in concentrated sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 1241-1246. DOI: 10.1039/P29850001241  0.4
1985 Lambrechts HJA, Schaasberg-Nienhuis ZRH, Cerfontain H. Aromatic sulphonation. Part 92.1 Sulphonation of the three methylphenols and the six dimethylphenols in concentrated aqueous sulphuric acid; and the isomerization of some of the resulting sulphonic acids and of m-xylene-2and o-xylene-3-sulphonic acid Journal of the Chemical Society, Perkin Transactions 2. 669-675. DOI: 10.1039/P29850000669  0.433
1985 Cerfontain H, Lambrechts HJA, Schaasberg-Nienhuis ZRH, Coombes RG, Hadjigeorgiou P, Tucker GP. Aromatic sulphonation. Part 91.1 The sulphonation of anisole, phenol, phenyl methanesulphonate, potassium phenyl sulphate, and a series of methyl-, bromo-, and chloro-substituted anisoles and phenols in concentrated aqueous sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 659-667. DOI: 10.1039/P29850000659  0.419
1985 Van Der Veen RH, Cerfontain H. Electrophilic substitution of β,γ-unsaturated esters and ketones using phenyl vinyl sulphoxide as a vinyl cation synthon Journal of the Chemical Society, Perkin Transactions 1. 661-668. DOI: 10.1039/P19850000661  0.386
1985 Veen RHVd, Cerfontain H. Temperature-dependent alkylation of .gamma.-phenyl .beta.,.gamma.-unsaturated acid and ester systems in hexamethylphosphoric triamide-tetrahydrofuran solutions using lithium diisopropylamide Journal of Organic Chemistry. 50: 342-346. DOI: 10.1021/Jo00203A011  0.301
1985 Van Der Veen RH, Cerfontain H. Photochemistry of β,γ-enones-VIII1 1 Part 7.R.H. van der Veen, C. Kruk and H. Cerfontain, J.Am. Chem. Soc. 105, 4267, 1983. On the remarkable photostability of some β,γ.β',γ'-dienones and the 1,3-acyl shift photoreactivity of two β,γ.γ',δ'-dienones Tetrahedron. 41: 585-594. DOI: 10.1016/S0040-4020(01)96504-4  0.358
1985 Wit Pd, Cerfontain H. The sulfonation and protonation of a series of azulenes. Observation of stable σ‐complexes in the sulfonation of 4,6,8‐trimethylazulene, guaiazulene and bis(3‐guaiazulenyl)methane Recueil Des Travaux Chimiques Des Pays-Bas. 104: 25-36. DOI: 10.1002/Recl.19851040107  0.403
1985 Buys TSV, Cerfontain H, Geenevasen JAJ, Koppes MJCM, Stunnenberg F. Steric control in the photochemical (E)‐(Z) isomerization of some (over)crowded α‐oxo oxime ethers Recueil Des Travaux Chimiques Des Pays-Bas. 104: 19-24. DOI: 10.1002/Recl.19851040106  0.326
1985 Lambrechts HJA, Mul J, Cerfontain H. Aromatic Sulfonation. Part 93. Sulfonation Of The Three Tert-Butylphenols, Four Di-Tert-Butylphenols, And 2,4,6,-Tri-Tert-Butylphenol Cheminform. 16. DOI: 10.1002/Chin.198538143  0.373
1985 Lambrechts HJA, Schaasberg-Nienhuis ZRH, Cerfontain H. Aromatic Sulfonation. Part 92. Sulfonation Of The Three Methylphenols And The E Six Dimethylphenols In Concentrated Aqueous Sulfuric Acid: And The Isomerization Of Some Of The Resulting Sulfonic Acids And Of M-Xylene-2- And O-Xylene-3 Cheminform. 16. DOI: 10.1002/Chin.198537117  0.371
1985 Cerfontain H, Lambrechts HJA, Schaasberg-Nienhuis ZRH, Coombes RG, Hadjigeorgiou P, Tucker GP. Aromatic Sulfonation. Part 91. The Sulfonation Of Anisole, Phenol, Phenyl Methanesulfonate, Potassium Phenyl Sulfate, And A Series Of Methyl-, Bromo-, And Chloro-Substituted Anisoles And Phenols In Concentrated Aqueous Sulfuric Acid Cheminform. 16. DOI: 10.1002/Chin.198537116  0.417
1985 Wit PD, Lambrechts HJA, Cerfontain H. On The Bromination Of 1,2,3-Triphenylazulene Cheminform. 16. DOI: 10.1002/Chin.198529167  0.354
1985 Van Der Veen RH, Cerfontain H. Temperature-dependent alkylation of γ-phenyl β,γ-unsaturated acid and ester systems in hexamethylphosphortriamide-tetrahydrofuran solutions using lithium diisopropylamide Journal of Organic Chemistry. 50: 342-346. DOI: 10.1002/Chin.198525124  0.37
1985 Wit PD, Cerfontain H. Aromatic Sulfonation. Part 89. Sulfonation und Protonation of a Series of Azulenes. Observation of Stable σ-Complexes in the Sulfonation of 4,6,8-Trimethylazulene, Guaiazulene und Bis(3-guaiazulenyl)methane. Cheminform. 16. DOI: 10.1002/Chin.198521119  0.334
1985 Buys TSV, Cerfontain H, Geenevasen JAJ, Koppes MJCM, Stunnenberg F. Photochemistry of α-Oxo Oxime Ethers. Part 8. Steric Control in the Photochemical (E)-(Z) Isomerization of Some (Over)crowded α-Oxo Oxime Ethers. Cheminform. 16. DOI: 10.1002/Chin.198521104  0.352
1984 Veen RHVD, Geenevasen JAJ, Cerfontain H. Reactions of α-aryl carbonyl compounds with lithium ester enolates Canadian Journal of Chemistry. 62: 2202-2205. DOI: 10.1139/V84-376  0.42
1984 Cerfontain H, Goossens H, Koeberg-Telder A, Kruk C, Lambrechts HJA. Aromatic sulfonation. 88. Protonation and sulfur trioxide sulfonation of some 1,6-methano[10]annulenes Journal of Organic Chemistry. 16: 3097-3100. DOI: 10.1021/Jo00191A011  0.358
1984 Caus MJ, Cerfontain H, Piniella JF. Photochemical And Lewis-Acid-Catalyzed Rearrangement Of 1-Phenyl-4-Methyl-3,6-Dioxabicyclo(3.1.0)Hexan-2-One Into Its Tetronic Acid Isomer Cheminform. 15. DOI: 10.1002/Chin.198411110  0.407
1983 Wit Pd, Cerfontain H. On the positional reactivity order in the sulfuric acid sulfonation of the two naphthalenesulfonic acids Canadian Journal of Chemistry. 61: 1453-1455. DOI: 10.1139/V83-254  0.349
1983 Verheijdt PL, Cerfontain H. Photochemistry of 1,2-diketones. Part 5. Formation of dihydrodioxines, oxetanes, allylic ethers, and 1,2-adducts from alicyclic 1,2-diketones and alkenes Journal of the Chemical Society, Perkin Transactions 2. 1343-1349. DOI: 10.1039/P29830001343  0.424
1983 Laali K, Cerfontain H. Aromatic protonation. 7. Mono- and diprotonation of a series of methylphenanthrenes Journal of Organic Chemistry. 48: 1092-1095. DOI: 10.1021/Jo00155A032  0.333
1983 Caus MJ, Cerfontain H, Piniella JF. Photochemical and Lewis-acid-catalyzed rearrangement of 1-phenyl-4-methyl-3,6-dioxabicyclo[3.1.0]hexan-2-one into its tetronic acid isomer† Recueil Des Travaux Chimiques Des Pays-Bas. 102: 515-519. DOI: 10.1002/Recl.19831021205  0.426
1983 Cerfontain H, Laali K, Lambrechts HJA. Aromatic sulfonation 86. Sulfonation of pyrene, 1-methylpyrene and perylene† Recueil Des Travaux Chimiques Des Pays-Bas. 102: 210-214. DOI: 10.1002/Recl.19831020404  0.407
1983 Sarphatie LA, Verheijdt PL, Cerfontain H. On the luminescence and photochemistry of the lower excited electronic states of some acyclic 1,2-diketones† Recueil Des Travaux Chimiques Des Pays-Bas. 102: 9-13. DOI: 10.1002/Recl.19831020102  0.306
1983 Visser CP, Wel HVD, Cerfontain H. PHOTOCHEMISTRY OF DIENONES. PART 11. PHOTOCHEMISTRY OF THE PIVALOYL ANALOGS OF (E)-α- AND (E)-β-IONONE Cheminform. 14. DOI: 10.1002/Chin.198338122  0.302
1983 Lambrechts HJA, Cerfontain H. Solutes In Sulfuric Acid. Part Ix. Effect Of Para-Substitution On The Ionization Of The Oxonium Ions Of Phenol And Anisole Cheminform. 14. DOI: 10.1002/Chin.198338090  0.342
1983 Koeberg-Telder A, Lambrechts HJA, Cerfontain H. Solutes In Sulfuric Acid. Part Viii. Protonation Of Phenol, 4-Fluorophenol And The 2- And 4-Sulfonates Of Anisole And Phenol In Concentrated Aqueous Sulfuric Acid; Determination Of Pka Values By Means Of Carbon-13 Nmr Cheminform. 14. DOI: 10.1002/Chin.198338089  0.37
1983 Laali K, Cerfontain H. Aromatic Protonation. 7. Mono- And Diprotonation Of A Series Of Methylphenanthrenes Cheminform. 14. DOI: 10.1002/Chin.198334176  0.333
1983 Cerfontain H, Laali K, Lambrechts HJA. Aromatic Sulfonation 86. Sulfonation Of Pyrene, 1-Methylpyrene And Perylene Cheminform. 14. DOI: 10.1002/Chin.198329097  0.363
1982 Verheijdt PL, Cerfontain H. Dipole moments, spectroscopy, and ground and excited state conformations of cycloalkane-1,2-diones Journal of the Chemical Society, Perkin Transactions 2. 1541-1547. DOI: 10.1039/P29820001541  0.313
1982 Cerfontain H. Aromatic sulfonation. 83. On the sulfonation positional-reactivity order of arenesulfonic acids Journal of Organic Chemistry. 14: 4680-4688. DOI: 10.1021/Jo00145A015  0.353
1982 Cerfontain H, Koeberg-Telder A, Laali K, Lambrechts HJA. Aromatic sulfonation. 82. Sulfonation of a series of bromo- and methylphenanthrenes with sulfur trioxide Journal of Organic Chemistry. 14: 4069-4075. DOI: 10.1021/Jo00142A014  0.376
1982 Lambrechts HJA, Cerfontain H. Aromatic sulphonation-80. Sulphur trioxide sulphonation of some tri- and tetra-methylnaphthalenes Tetrahedron. 38: 1667-1671. DOI: 10.1016/0040-4020(82)80144-0  0.33
1982 Veen Rvd, Kruk C, Cerfontain H. Intramolecular competition between the di-π-methane and the oxa-di-π-methane rearrangements in a triplet-excited β, γ, β1, γ1-dienone.† Recueil Des Travaux Chimiques Des Pays-Bas. 101: 272-273. DOI: 10.1002/Recl.19821010709  0.326
1982 Cerfontain H, Laali K, Lambrechts HJA. Aromatic Sulfonation 84. Sulfonation Of Bi- And Triphenylene Cheminform. 13. DOI: 10.1002/Chin.198250115  0.351
1982 Veen RVD, Kruk C, Cerfontain H. PHOTOCHEMISTRY OF β,Γ-UNSATURATED KETONES. 6. INTRAMOLECULAR COMPETITION BETWEEN THE DI-Π-METHANE AND THE OXADI-Π-METHANE REARRANGEMENTS IN A TRIPLET-EXCITED β,Γ,β′,Γ′-DIENONE Cheminform. 13. DOI: 10.1002/Chin.198247128  0.328
1982 Verheidt PL, Kruk C, Cerfontain H. RING INVERSION IN SOME FULLY α-METHYLATED CYCLOALKANE-1,2-DIONES Cheminform. 13. DOI: 10.1002/Chin.198225053  0.339
1982 Koeberg‐Telder A, Cerfontain H. Reactions Of Overcrowded Polymethylbenzenedisulfonic Acids In Concentrated Aqueous Sulfuric Acid; Protiodesulfonation And Intramolecular Sulfonic Anhydride Formation Cheminform. 13. DOI: 10.1002/Chin.198217132  0.417
1981 Konwenhoven AP, van Noort PGM, Cerfontain H. The photochemistry of benzotricyclo[3.1.0.02,6]Hex-3-ene1 Tetrahedron Letters. 22: 1745-1748. DOI: 10.1016/S0040-4039(01)90428-9  0.323
1981 Van der Weerdt AJA, Cerfontain H. Photochemistry of β, γ-unsaturated ketones-V1 1 Part 4. A.J.A van der Weerdt and H. Cerfontain, J. Chem. Soc. Perkin II 592 (1980). The direct irradiation of some γ-phenyl β, γ-enones2 2 Taken from the Doctoral Thesis (in English) of A.J.A van der Weerdt, University of Amsterdam, March (1978). Tetrahedron. 37: 2121-2130. DOI: 10.1016/S0040-4020(01)97968-2  0.425
1981 Baas P, Cerfontain H, Van Noort PCM. Photochemistry of dienones-X1 1 Part 9: C.P. Visser and H. Cerfontain, Rec. Trav. Chim. accepted for publication. Photochemistry of (e)-β-ionone oxime ethyl ether Tetrahedron. 37: 1583-1588. DOI: 10.1016/S0040-4020(01)92099-X  0.314
1981 Cerfontain H, Geenevasen JAJ. Photochemistry of dienones-VIII1 1 Part 7. H. Cerfontain, J.A.J. Geenevasen and P.C.M. van Noort, J. Chem. Soc. Perkin II 1057 (1980). The low temperature photochemistry of (z)-β-ionone and its photo-isomers Tetrahedron. 37: 1571-1575. DOI: 10.1016/S0040-4020(01)92097-6  0.374
1981 Visser CP, Cerfontain H. Photochemistry of dienones. Part IX. Photochemistry of (E)‐ and (Z)‐α‐ionone Recueil Des Travaux Chimiques Des Pays-Bas. 100: 153-156. DOI: 10.1002/Recl.19811000406  0.387
1981 Visser CP, Cerfontain H. PHOTOCHEMISTRY OF DIENONES. PART IX. PHOTOCHEMISTRY OF (E)- AND (Z)-α-IONONE Cheminform. 12. DOI: 10.1002/Chin.198130122  0.319
1980 Cerfontain H, Noort PCMV. Facile Photochemical Synthesis of Some 4-Oxoalkanoic Acids and Esters Synthesis. 1980: 490-492. DOI: 10.1055/S-1980-29069  0.375
1980 Cerfontain H, Geenevasen JAJ, Van Noort PCM. Photochemistry of dienones. Part 7. On the photosensitized isomerization of (E)-β-ionone and its isomeric α-pyran. Evidence for exciplex formation between the α-pyran and fluoren-9-one Journal of the Chemical Society, Perkin Transactions 2. 1057-1062. DOI: 10.1039/P29800001057  0.362
1980 Van De Griendt F, Visser CP, Cerfontain H. Aromatic sulphonation. Part 79. Sulphonation of some (poly)- methylanthracenes with dioxan-sulphur trioxide complex in dioxan Journal of the Chemical Society, Perkin Transactions 2. 911-914. DOI: 10.1039/P29800000911  0.408
1980 Van De Griendt F, Cerfontain H. Aromatic sulphonation. Part 78. Behaviour of some α-chloro- substituted 9-methyl-, 9-ethyl-, 9-isopropyl-anthracenes, and of 1,4,9-trimethylanthracene in dioxan-sulphur trioxide complex in dioxan as sulphonating medium Journal of the Chemical Society, Perkin Transactions 2. 904-910. DOI: 10.1039/P29800000904  0.45
1980 Roof AAM, Van Woerden HF, Cerfontain H. Photochemistry of α-aryl carboxylic anhydrides. Part 4. 1 Photoreactions of some asymmetrical anhydrides derived from o- And p-methoxyphenylacetic acid, and of some of the phenylacetate ester photoproducts Journal of the Chemical Society, Perkin Transactions 2. 838-841. DOI: 10.1039/P29800000838  0.413
1980 Van Der Weerdt AJA, Cerfontain H. Photochemistry of acylic βγ-unsaturated ketones. Part 4. The effect of α-methyl substitution with some hex-4-en-2-ones and 1-phenylpent-3-en-1-ones Journal of the Chemical Society, Perkin Transactions 2. 592-597. DOI: 10.1039/P29800000592  0.402
1980 Koeberg-Telder A, Van De Griendt F, Cerfontain H. Aromatic sulphonation. Part 77. Sultone and 1,3,2,4-dioxadithian 1,1,3,3-tetraoxide formation in the sulphonation of 3-phenylpropan-1-ol Journal of the Chemical Society, Perkin Transactions 2. 358-362. DOI: 10.1039/P29800000358  0.339
1980 Bregman R, Cerfontain H. Aromatic sulphonation. Part 76. Sulphonation in sulphuric acid of ω-phenylalkanes containing the NH3 +, NMe 3 +, or NO2 substituent at position 1. Comparison of the side-chain NH3 +, NMe3 +, NO2, SO3H, and OSO3H substituent effects Journal of the Chemical Society, Perkin Transactions 2. 33-38. DOI: 10.1039/P29800000033  0.384
1980 Lammertsma K, Cerfontain H. Aromatic sulphonation. Part 75. Intramolecular kinetic isotope effects of hydrogen in the aprotic sulphonation of 1,2,4,5-tetramethylbenzene, naphthalene, and 1,6-methano[10]annulene. Implications for the mechanism of the sulphur trioxide sulphonation Journal of the Chemical Society, Perkin Transactions 2. 28-32. DOI: 10.1039/P29800000028  0.54
1980 Van De Griendt F, Cerfontain H. Aromatic sulphonation. Part 74. Sulphonation of some 9-alkenyl-anthracenes and the corresponding benzenes with dioxan-SO3 Journal of the Chemical Society, Perkin Transactions 2. 23-27. DOI: 10.1039/P29800000023  0.424
1980 Van De Griendt F, Cerfontain H. Aromatic sulphonation. Part 73. Behaviour of three 9-alkylanthracenes containing one side-chain α-hydrogen in dioxan-SO3 complex in dioxan as sulphonating medium Journal of the Chemical Society, Perkin Transactions 2. 19-22. DOI: 10.1039/P29800000019  0.449
1980 Griendt Fvd, Cerfontain H. Aromatic Sulphonation. Part 72. Behaviour of Some 9‐Alkylanthracenes Containing 2 α‐Hydrogens and 0‐3 β‐Hydrogens in the Side‐chain with Dioxan‐Sulphur Trioxide in Dioxan as Sulphonating Medium; Mechanism for Alkyl Side‐chain Reduction and Subsequent Sulphonation. Journal of the Chemical Society-Perkin Transactions 1. 11: 13-18. DOI: 10.1039/P29800000013  0.435
1980 Lammertsma K, Cerfontain H. Aromatic protonation. 6. The rearranged ion of monoprotonated 1,6-methano[10]annulene. Evidence for the presence of a cyclopropylcarbinyl cation moiety [9] Journal of the American Chemical Society. 102: 4528-4529. DOI: 10.1021/Ja00533A043  0.509
1980 Lammertsma K, Cerfontain H. Aromatic protonation. 5. Diprotonated 1,6-methano[10]annulene. NMR evidence for a cyclopropyldicarbinyl dication moiety [13] Journal of the American Chemical Society. 102: 3257-3259. DOI: 10.1021/Ja00529A068  0.521
1980 van de Griendt F, Cerfontain H. Aromatic protonation.-31 1 Part 2; F. van de Griendt and H. Cerfontain, Tetrahedron 35 (21), 2563 (1979). 1H NMR parameters of some methyl substituted anthracenium ions. Study on the site of protonation Tetrahedron. 36: 317-320. DOI: 10.1016/0040-4020(80)80021-4  0.302
1980 Griendt FVD, Cerfontain H. Aromatic Sulfonation. Part 74. Sulfonation Of Some 9-Alkenylanthracenes And The Corresponding Benzenes With Dioxane-Sulfur Trioxide Cheminform. 11. DOI: 10.1002/Chin.198015125  0.419
1980 Griendt FVD, Cerfontain H. AROMATIC SULFONATION. PART 73. BEHAVIOR OF THREE 9-ALKYLANTHRACENES CONTAINING ONE SIDE-CHAIN α-HYDROGEN IN DIOXANE-SULFUR TRIOXIDE COMPLEX IN DIOXANE AS SULFONATING MEDIUM Cheminform. 11. DOI: 10.1002/Chin.198015124  0.323
1980 Griendt FVD, Cerfontain H. Aromatic Sulphonation. Part 72. Behaviour of Some 9-Alkylanthracenes Containing 2 α-Hydrogens and 0-3 β-Hydrogens in the Side-chain with Dioxan-Sulphur Trioxide in Dioxan as Sulphonating Medium; Mechanism for Alkyl Side-chain Reductio Cheminform. 11. DOI: 10.1002/Chin.198015123  0.327
1979 Lammertsma K, Cerfontain H. SULPHONATION OF THE TEN DIMETHYLNAPHTHALENES AND 2-METHYLNAPHTHALENE: ISOMER DISTRIBUTION AND CORRELATIONS WITH MOLECULAR ORBITAL THEORY Phosphorus and Sulfur and the Related Elements. 6: 187-187. DOI: 10.1080/03086647908080367  0.569
1979 Griendt Fvd, Cerfontain H. Sulfonation Of 9-Alkylanthracenes Phosphorus Sulfur and Silicon and the Related Elements. 6: 109-109. DOI: 10.1080/03086647908080328  0.46
1979 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes. Part 7. Photolysis of some α-oxo-oxime esters Journal of the Chemical Society, Perkin Transactions 2. 1653-1660. DOI: 10.1039/P29790001653  0.457
1979 Roof AAM, Van Woerden HF, Cerfontain H. The photochemistry of α-arylcarboxylic anhydrides. Part 3. Photoreactions and luminescence spectra of 1- and 2-naphthylacetic anhydrides and 1,3-di-(1-naphthyl)propan-2-one Journal of the Chemical Society, Perkin Transactions 2. 1545-1551. DOI: 10.1039/P29790001545  0.355
1979 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes. Part 5. Photolysis of 3-ethoxyiminobutan-2-one Journal of the Chemical Society, Perkin Transactions 2. 1025-1028. DOI: 10.1039/P29790001025  0.419
1979 Koeberg-Telder A, Kortekaas TA, Cerfontain H. Aromatic sulphonation. Part 71. Sulphonation and protonation of 1,2-diphenylcyclopropenone Journal of the Chemical Society, Perkin Transactions 2. 851-852. DOI: 10.1039/P29790000851  0.422
1979 Schaasberg-Nienhuis ZRH, Cerfontain H, Kortekaas TA. Aromatic sulphonation. Part 70. The sulphuric acid sulphonation of α,ω-diphenylalkanes, biphenylene, fluorene, 9,10- dihydrophenanthrene, 10,11 -dihydro-5H-benzo[a,d]cycloheptene, and triptycene Journal of the Chemical Society, Perkin Transactions 2. 844-850. DOI: 10.1039/P29790000844  0.425
1979 Van Noort PCM, Cerfontain H. Arylcyclopropane photochemistry. Part 4. The photochemistry of some 2-arylcyclopropanecarboxylates Journal of the Chemical Society, Perkin Transactions 2. 822-826. DOI: 10.1039/P29790000822  0.358
1979 Lammertsma K, Cerfontain H. Aromatic sulphonation. Part 68. Sulphonation of the ten dimethylnaphthalenes and 2-methylnaphthalene: Isomer distribution and correlations with molecular orbital theory Journal of the Chemical Society, Perkin Transactions 2. 673-680. DOI: 10.1039/P29790000673  0.564
1979 Van Noort PCM, Cerfontain H. Arylcyclopropane photochemistry. Part 3. The photochemistry of 1-phenyl-4,4,5-trimethyl-3-oxabicyclo[3.1.0]hexan-2-one Journal of the Chemical Society, Perkin Transactions 2. 249-254. DOI: 10.1039/P29790000249  0.376
1979 Kortekaas TA, Cerfontain H. Aromatic sulphonation. Part 66. Sulphonation of some biphenyl derivatives Journal of the Chemical Society, Perkin Transactions 2. 224-227. DOI: 10.1039/P29790000224  0.387
1979 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes. Part 4. Spectral properties, conformations, and photoisomerization of α-oxo-oximes and their acetates Journal of the Chemical Society, Perkin Transactions 2. 156-162. DOI: 10.1039/P29790000156  0.38
1979 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes. Part 3. Photoisomerization of some α-oxo-oxime ethyl ethers Journal of the Chemical Society, Perkin Transactions 2. 151-155. DOI: 10.1039/P29790000151  0.37
1979 Lammertsma K, Cerfontain H. Proton and carbon-13 nuclear magnetic resonance spectra of dimethylnaphthalenium ions. Calculation on the site of protonation and correlation between carbon-13 chemical shifts and electron density by the Hueckel MO method Journal of the American Chemical Society. 101: 3618-3624. DOI: 10.1021/Ja00507A030  0.482
1979 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes-VI1 1 Part V.P. Baas and H. Cerfontain, J. Chem. Soc. Perkin II, accepted for publication. Irradiation of 3-ethoxyimino-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one Tetrahedron. 35: 1135-1137. DOI: 10.1016/S0040-4020(01)93735-4  0.402
1979 LAMMERTSMA K, CERFONTAIN H. ChemInform Abstract: PROTON AND CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTRA OF DIMETHYLNAPHTHALENIUM IONS. CALCULATION ON THE SITE OF PROTONATION AND CORRELATION BETWEEN CARBON-13 CHEMICAL SHIFTS AND ELECTRON DENSITY BY THE HUECKEL MO METHOD Chemischer Informationsdienst. 10. DOI: 10.1002/Chin.197940056  0.487
1978 Van Noort PCM, Cerfontain H. Photochemistry of 4,4, exo-6-trimethyl-1 -phenyl-3-oxabicyclo[3,1,0] -hexan-2-one. Formation of a keten intermediate Journal of the Chemical Society, Perkin Transactions 2. 757. DOI: 10.1039/P29780000757  0.407
1978 Kortekaas TA, Cerfontain H. Aromatic isomerization reactions. Part 5. Isomerization of some biphenyldisulphonic acids in aqueous sulphuric acid at elevated temperatures Journal of the Chemical Society, Perkin Transactions 2. 742-745. DOI: 10.1039/P29780000742  0.401
1978 Lammertsma K, Verlaan CJ, Cerfontain H. Aromatic sulphonation. Part 65. On the sulphonation of 1-methylnaphthalene and polymethylbenzenes Journal of the Chemical Society, Perkin Transactions 2. 719-724. DOI: 10.1039/P29780000719  0.566
1978 Cerfontain H, Geenevasen JAJ. Photochemistry of dienones. Part 6. On the reacting excited states of retro-γ-ionones Journal of the Chemical Society, Perkin Transactions 2. 698-700. DOI: 10.1039/P29780000698  0.331
1978 Kortekaas TA, Cerfontain H, Gall JM. Aromatic sulphonation. Part 64.1 Sulphonation of biphenylmonosulphonic acids and some other biphenyls, containing a deactivating substituent, in concentrated sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 445-449. DOI: 10.1039/P29780000445  0.421
1978 Van Der Weerdt AJA, Cerfontain H, Van Der Ploeg JPM, Den Hollander JA. Photochemistry of acyclic βγ-unsaturated ketones. Determination of the electronically excited state responsible for α-cleavage by chemically induced dynamic nuclear polarisation Journal of the Chemical Society, Perkin Transactions 2. 155-160. DOI: 10.1039/P29780000155  0.393
1978 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes. Part 2. Irradiation of 4-ethoxyimino-2,6-dimethylheptan-3-one: A novel type II cyclobutanol formation Tetrahedron Letters. 19: 1501-1504. DOI: 10.1016/S0040-4039(01)94586-1  0.311
1978 van de Griendt F, Cerfontain H. Sultone formation in the sulphonation of 9-tert-butylanthracene; an unusual rearrangement of the sultone involving the tert-butyl group Tetrahedron Letters. 19: 3263-3266. DOI: 10.1016/S0040-4039(01)85610-0  0.308
1978 Griendt FVD, Cerfontain H. Aromatic Sulfonation. 69. Sultone Formation In The Sulfonation Of 9-Tert-Butylanthracene; An Unusual Rearrangement Of The Sultone Involving The Tert-Butyl Group Cheminform. 9. DOI: 10.1002/Chin.197848206  0.343
1977 Maarsen PK, Bregman R, Cerfontain H. Aromatic sulphonation. Part 63. Sulphonation of m-aminobenzenesulphonic acid in fuming sulphuric acid. Formation of an overcrowded tetrasulphonic acid Journal of the Chemical Society, Perkin Transactions 2. 1863-1868. DOI: 10.1039/P29770001863  0.408
1977 Kortekaas TA, Cerfontain H. Aromatic sulphonation. Part 62. Sulphonation of biphenyl in concentrated aqueous sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 1560-1563. DOI: 10.1039/P29770001560  0.438
1977 Van Albada MP, Cerfontain H. Aromatic sulphonation. Part 61. Sulphonylation in the reaction of aromatic compounds with chlorosulphuric acid in nitromethane and in dichloromethane Journal of the Chemical Society, Perkin Transactions 2. 1557-1559. DOI: 10.1039/P29770001557  0.449
1977 Van Der Weerdt AJA, Cerfontain H. Photochemistry of acyclic βγ-unsaturated ketones: The effect of α-methyl substitution Journal of the Chemical Society, Perkin Transactions 2. 1357-1361. DOI: 10.1039/P29770001357  0.402
1977 Baas P, Cerfontain H. Photochemistry of α-oxo-oximes. Part 1. Photoisomerization of biacetyl mono-oxime ethyl ether Journal of the Chemical Society, Perkin Transactions 2. 1351-1353. DOI: 10.1039/P29770001351  0.356
1977 Maarsen PK, Cerfontain H. Aromatic sulphonation. Part 59. Sulphonation of aniline in concentrated aqueous and fuming sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 1008-1010. DOI: 10.1039/P29770001008  0.412
1977 Maarsen PK, Cerfontain H. Aromatic sulphonation. Part 58. Protonation and sulphonation of methanesulphonanilide in aqueous sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 1003-1007. DOI: 10.1039/P29770001003  0.392
1977 Maarsen PK, Cerfontain H. Aromatic sulphonation. Part 56.1 the rearrangement of phenylsulphamic acid to aniliniumsulphonic acids † in concentrated sulphuric acid: Evidence for an intermolecular reaction pathway Journal of the Chemical Society, Perkin Transactions 2. 921-928. DOI: 10.1039/P29770000921  0.419
1977 Cerfontain H, Koeberg-Telder A, Ris C. Aromatic sulphonation. Part 55. Reaction of polyisopropylbenzenes with concentrated aqueous sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 720-724. DOI: 10.1039/P29770000720  0.433
1977 Koeberg-Telder A, Cerfontain H. Aromatic sulphonation. Part 54. Sulphonation of polyethylbenzenes. On the Jacobsen rearrangement of the tetraethylbenzenesulphonic acids Journal of the Chemical Society, Perkin Transactions 2. 717-719. DOI: 10.1039/P29770000717  0.423
1977 Kelder J, Cerfontain H, Van der Wielen FWM. Photochemistry of some cyclopropyl conjugated 1,2-diketones. Part 2. Fragmentation reactions and reduction by aldehydes Journal of the Chemical Society, Perkin Transactions 2. 710-714. DOI: 10.1039/P29770000710  0.421
1977 van Noort PCM, Cerfontain H. The di-π-methane reaction of 4-benzyl-5,5-dimethyl-2(5H)-furanone Tetrahedron Letters. 18: 3899-3900. DOI: 10.1016/S0040-4039(01)83385-2  0.322
1977 Baas P, Cerfontain H. Conformational study on some β-phenyl-α,β-unsaturated ketones Tetrahedron. 33: 1509-1511. DOI: 10.1016/0040-4020(77)88013-7  0.341
1977 Weerdt AJAVD, Cerfontain H. PHOTOCHEMISTRY OF ACYCLIC β,Γ-UNSATURATED KETONES. THE EFFECT OF SUBSTITUENTS AT THE α-C AND THE CARBONYL GROUP ON THE OCCURRENCE OF OXA-DI-Π-METHANE REARRANGEMENT Cheminform. 8. DOI: 10.1002/Chin.197751126  0.357
1976 Funke CW, Cerfontain H. Photochemical oxetan formation: The Paterno-Büchi reaction of aliphatic aldehydes and ketones with alkenes and dienes Journal of the Chemical Society, Perkin Transactions 2. 1902-1908. DOI: 10.1039/P29760001902  0.748
1976 Cerfontain H, Schaasberg-Nienhuis ZRH. Aromatic sulphonation. Part 53. Kinetics and mechanism of sulphonation of ω-phenylalkane-1-sulphonic acids in sulphuric acid. Comparison of the side-chain SO3H and OSO3H substituent effects Journal of the Chemical Society, Perkin Transactions 2. 1780-1784. DOI: 10.1039/P29760001780  0.321
1976 Koeberg-Telder A, Cerfontain H. Aromatic sulphonation. Part 52. Ionization, sulphation, sulphonation, and alkylation of ω-phenylalkan-1-ols in sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 1776-1780. DOI: 10.1039/P29760001776  0.42
1976 Funke CW, De Boer JLM, Geenevasen JAJ, Cerfontain H. The photochemistry of some cycloalkanecarbaldehydes in inert solvents Journal of the Chemical Society, Perkin Transactions 2. 1083-1089. DOI: 10.1039/P29760001083  0.741
1976 Funke CW, Cerfontain H. The gas-phase photolysis of cyclobutanecarbaldehyde Journal of the Chemical Society, Perkin Transactions 2. 826-827. DOI: 10.1039/P29760000826  0.716
1976 Funke CW, Cerfontain H. Photoreduction of cycloalkanecarbaldehydes Journal of the Chemical Society, Perkin Transactions 2. 669-673. DOI: 10.1039/P29760000669  0.733
1976 Roof AAM, van Woerden HF, Cerfontain H. The photochemistry of α-aryl carboxylic anhydrides-II. Photolysis of some substituted phenylacetic anhydrides Tetrahedron. 32: 2967-2971. DOI: 10.1016/0040-4020(76)80154-8  0.447
1976 Ris C, Cerfontain H. Aromatic Sulfonation. Li. Sulfonation Of 1,3,5-Tri- And M- And P-Di-Tert-Butylbenzene, The Three Tert-Butylbenzenesulfonic Acids, And 3,5-Di-Tert-Butylbenzenesulfonic Acid Cheminform. 7. DOI: 10.1002/Chin.197602116  0.365
1975 Van Wageningen A, Roof AAM, Cerfontain H. Synthesis of Hetro-γ-Ionols and the Corresponding -Ionones Synthetic Communications. 5: 217-220. DOI: 10.1080/00397917508064113  0.343
1975 Ris C, Cerfontain H. Aromatic sulphonation. Part LI. Sulphonation of 1,3,5-tri- and m- and p-di-t-butylbenzene, the three t-butylbenzenesulphonic acids, and 3,5-di-t-butylbenzenesulphonic acid Journal of the Chemical Society, Perkin Transactions 2. 1438-1445. DOI: 10.1039/P29750001438  0.325
1975 Van Wageningen A, Cerfontain H, Geenevasen JAJ. Photochemistry of non-conjugated dienones. Part V. Photolysis of (E)-β-ionone and its isomeric α-pyran Journal of the Chemical Society, Perkin Transactions 2. 1283-1286. DOI: 10.1039/P29750001283  0.356
1975 Cerfontain H, Koeberg-Telder A, Ris C, Schenk C. Aromatic sulphonation. Part XLIX. Sulphonation of anthracene and some meso-substituted hydrocarbon derivatives: Mechanism of methyl side-chain sulphonation Journal of the Chemical Society, Perkin Transactions 2. 966-970. DOI: 10.1039/P29750000966  0.355
1975 Koeberg-Telder A, Cerfontain H. Solutes in sulphuric acid. Part VI. A nuclear magnetic resonance study of organic sulphonic acids and 1H nuclear magnetic resonance standards; pKBH determination of sulphonic acids Journal of the Chemical Society, Perkin Transactions 2. 226-229. DOI: 10.1039/P29750000226  0.37
1975 Cerfontain H, Koeberg-Telder A, Kruk C. Solutes in sulfuric acid. Part VII. Ionization of benzenesulfonic acid; determination of pKBH by 13C NMR Tetrahedron Letters. 16: 3639-3642. DOI: 10.1016/S0040-4039(00)91345-5  0.351
1975 Funke CW, Cerfontain H. Subsequent reactions within one and the same solvent cage. The photochemical formation of 1,2,3-tricyclopropyl-2-hydroxy-1,3-propanedione from cyclopropanecarbaldehyde Tetrahedron Letters. 16: 4061-4064. DOI: 10.1016/S0040-4039(00)91236-X  0.722
1975 Roof AAM, Woerden HFv, Cerfontain H. The photochemistry of α-aryl carboxylic anhydrides Tetrahedron Letters. 16: 815-818. DOI: 10.1016/S0040-4039(00)71991-5  0.356
1975 Roof AAM, Woerden HFV, Cerfontain H. The Photochemistry Of Alpha‐Aryl Carboxylic Anhydrides Cheminform. 6. DOI: 10.1002/Chin.197524159  0.418
1974 Van Wageningen A, Van Noort PCM, Cerfontain H. Photochemistry of non-conjugated dienones. Part IV. Photolysis and thermolysis of some retro-α-ionones and retro-α-ionols Journal of the Chemical Society, Perkin Transactions 2. 1662-1667. DOI: 10.1039/P29740001662  0.387
1974 Koeberg-Telder A, Cerfontain H. Aromatic sulphonation. Part XLVII. Reaction of 1,2-dihydrobenzocyclobutene with sulphonating reagents Journal of the Chemical Society, Perkin Transactions 2. 1206-1209. DOI: 10.1039/P29740001206  0.371
1974 Cerfontain H, Schaasberg-Nienhuis ZRH. Aromatic sulphonation. Part XLVI. Isomer distributions in the sulphonation of acenaphthene and its 3- and 5-sulphonic acids with sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 989-992. DOI: 10.1039/P29740000989  0.327
1974 Cerfontain H, Schaasberg-Nienhuis ZRH. Aromatic sulphonation. Part XLV. Degree of ortho-substitution and partial rate factors in the sulphonation of some phenyl- and diphenylalkanes with sulphuric acid; evidence for conformational control of ortho-substitution Journal of the Chemical Society, Perkin Transactions 2. 536-542. DOI: 10.1039/P29740000536  0.412
1974 Koeberg-Telder A, Ris C, Cerfontain H. Aromatic sulphonation. Part XLIV. Sulphonation of some meta-substituted benzenesulphonic acids with fuming sulphuric acid. Preparation of arene-1,2-disulphonic anhydrides Journal of the Chemical Society, Perkin Transactions 2. 98-101. DOI: 10.1039/P29740000098  0.387
1974 Maarsen PK, Bregman R, Cerfontain H. Solutes in sulphuric acid-V. Effects of substituents on the ionization of benzenesulphonic acids Tetrahedron. 30: 1211-1213. DOI: 10.1016/S0040-4020(01)97291-6  0.384
1974 Wageningen AV, Noort PCMV, Wielen FWMVD, Cerfontain H. Synthesis Of Some Non‐Conjugated Dienones In The Retro‐Alpha‐Ionone Series Cheminform. 6: 325-330. DOI: 10.1002/Chin.197513209  0.369
1973 Ris C, Cerfontain H. Aromatic sulphonation. Part XLIII. Selenonation and sulphonation of polyalkylbenzenes with selenic and sulphuric acids in acetic anhydride Journal of the Chemical Society, Perkin Transactions 2. 2129-2131. DOI: 10.1039/P29730002129  0.413
1973 Cerfontain H, Schaasberg-Nienhuis ZRH. Aromatic sulphonation. Part XLI. Sulphonation of 3-phenylpropane-1-sulphonic acid in sulphuric acid Journal of the Chemical Society, Perkin Transactions 2. 1413-1416. DOI: 10.1039/P29730001413  0.334
1973 Koeberg-Telder A, Cerfontain H. Aromatic sulphonation. Part XL. Rates of sulphonation ortho, meta, and para to a sulphonic acid group in methyl substituted benzenesulphonic acids Journal of the Chemical Society, Perkin Transactions 2. 633-637. DOI: 10.1039/P29730000633  0.426
1973 Funke CW, Cerfontain H. Photochemistry of cyclobutanecarboxaldehyde Tetrahedron Letters. 14: 487-490. DOI: 10.1016/S0040-4039(01)95678-3  0.691
1973 Kruk C, Roof AAM, Wageningen Av, Cerfontain H. PMR-spectra of some diastereoisomeric ionol isomers in the presence of EUIII-2,2,6,6-tetramethylheptadionate Recueil Des Travaux Chimiques Des Pays-Bas. 92: 1015-1019. DOI: 10.1002/Recl.19730920911  0.336
1973 Willard EG, Cerfontain H. Isomerization, disproportionation, methylation and sulfonylation in the reaction of polyalkylbenzenes with methanesulfonic acid Recueil Des Travaux Chimiques Des Pays-Bas. 92: 739-750. DOI: 10.1002/Recl.19730920709  0.442
1972 Albada MPv, Cerfontain H. Aromatic sulfonation 32: Kinetic isotope effect of hydrogen in sulfonation and sulfonylation of benzene Recueil Des Travaux Chimiques Des Pays-Bas. 91: 499-506. DOI: 10.1002/Recl.19720910412  0.301
1972 Cerfontain H, Schnitger BW. Solutes in sulfuric acid 4: Ionization of arenesulfonic acids; determination of pKa values by UV techniques Recueil Des Travaux Chimiques Des Pays-Bas. 91: 199-208. DOI: 10.1002/Recl.19720910215  0.377
1970 Prinsen AJ, Koeberg-Telder A, Cerfontain H. Sulphonation of polymethylbenzensulphonic acids. Evidence for a buttressing effect Tetrahedron. 26: 1953-1960. DOI: 10.1016/S0040-4020(01)92771-1  0.382
1970 Cerfontain H, Koeberg‐Telder A. Complex formation between organic nitro compounds and sulfur trioxide Recueil Des Travaux Chimiques Des Pays-Bas. 89: 569-574. DOI: 10.1002/Recl.19700890603  0.308
1969 Kort CWF, Cerfontain H. Aromatic Sulfonation 26: Kinetics and mechanism of the sulfonation of some polyfluorobenzenes in fuming sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 88: 1298-1304. DOI: 10.1002/Recl.19690881106  0.388
1969 Kaandorp AW, Cerfontain H. Aromatic sulfonation. Part 23: Sulfonation of p‐xylene in aqueous sulfuric acid Recueil Des Travaux Chimiques Des Pays-Bas. 88: 725-727. DOI: 10.1002/Recl.19690880613  0.354
1968 Bosscher JK, Cerfontain H. Aromatic sulphonation with sulphur trioxide in trichlorofluoromethane as a solvent Tetrahedron. 24: 6543-6555. DOI: 10.1016/S0040-4020(01)96867-X  0.428
1967 Cerfontain H, Telder A. Slow proton transfer in the nitration of anthracene; determination of the kinetic isotope effect of hydrogen in the nitration of naphthalene and anthracene with nitronium tetrafluoroborate Recueil Des Travaux Chimiques Des Pays-Bas. 86: 371-380. DOI: 10.1002/Recl.19670860404  0.35
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