Paul G. Williard - Publications

Affiliations: 
Chemistry Brown University, Providence, RI 
Area:
total synthesis of several marine natural products as well as vitamin D derivatives, characterization of reactive intermediates such as enolate anions and amide bases
Website:
http://research.brown.edu/research/profile.php?id=1106970163&r=1

171 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
2017 Tai O, Hopson R, Williard PG. Aggregation and Solvation of n-Butyllithium. Organic Letters. PMID 28749141 DOI: 10.1021/acs.orglett.7b01644  0.72
2017 Tai O, Hopson R, Williard PG. Ligand Binding Constants to Lithium Hexamethyldisilazide (LiHMDS) Determined by Diffusion-ordered NMR Spectroscopy (DOSY). The Journal of Organic Chemistry. PMID 28562035 DOI: 10.1021/acs.joc.7b00800  0.72
2016 Guang J, Liu QP, Hopson R, Kagan G, Li W, Monroe TB, Williard PG. Conformational Polymorphism of Lithium Pinacolone Enolate. Journal of the American Chemical Society. PMID 27762552 DOI: 10.1021/jacs.6b08177  0.72
2016 Guang J, Hopson R, Williard PG, Fujiu M, Negishi K, Mikami K. Perfluoroalkyl Grignard Reagents: NMR Study of 1-Heptafluoropropylmagnesium Chloride in Solution. The Journal of Organic Chemistry. PMID 27295419 DOI: 10.1021/acs.joc.6b00807  1
2016 Zhang QF, Williard PG, Wang LS. Polymorphism of Phosphine-Protected Gold Nanoclusters: Synthesis and Characterization of a New 22-Gold-Atom Cluster. Small (Weinheim An Der Bergstrasse, Germany). PMID 27007493 DOI: 10.1002/smll.201600407  0.52
2016 Bradley D, Levin E, Rodriguez C, Williard PG, Stanton A, Socha AM. Equilibrium studies of canola oil transesterification using a sodium glyceroxide catalyst prepared from a biodiesel waste stream Fuel Processing Technology. 146: 70-75. DOI: 10.1016/j.fuproc.2016.02.009  1
2015 Zhang Y, MacIntosh AD, Wong JL, Bielinski EA, Williard PG, Mercado BQ, Hazari N, Bernskoetter WH. Iron catalyzed CO2 hydrogenation to formate enhanced by Lewis acid co-catalysts. Chemical Science. 6: 4291-4299. PMID 29218198 DOI: 10.1039/c5sc01467k  0.6
2015 Fujiu M, Negishi K, Guang J, Williard PG, Kuroki S, Mikami K. Chemo-, regio-, and stereo-selective perfluoroalkylations by a Grignard complex with zirconocene. Dalton Transactions (Cambridge, England : 2003). 44: 19464-8. PMID 26440224 DOI: 10.1039/c5dt03039k  1
2015 Guang J, Hopson R, Williard PG. Diffusion Coefficient-Formula Weight (D-FW) Analysis of (2)H Diffusion-Ordered NMR Spectroscopy (DOSY). The Journal of Organic Chemistry. 80: 9102-7. PMID 26318438 DOI: 10.1021/acs.joc.5b01457  1
2015 Guang J, Liu QP, Hopson R, Williard PG. Lithium Pinacolone Enolate Solvated by Hexamethylphosphoramide. Journal of the American Chemical Society. 137: 7347-56. PMID 25933508 DOI: 10.1021/jacs.5b01906  1
2015 Kreye M, Freytag M, Jones PG, Williard PG, Bernskoetter WH, Walter MD. Homolytic H2 cleavage by a mercury-bridged Ni(I) pincer complex [{(PNP)Ni}2{μ-Hg}]. Chemical Communications (Cambridge, England). 51: 2946-9. PMID 25588774 DOI: 10.1039/c4cc09743b  1
2015 Zhang Y, MacIntosh AD, Wong JL, Bielinski EA, Williard PG, Mercado BQ, Hazari N, Bernskoetter WH. Iron catalyzed CO2 hydrogenation to formate enhanced by Lewis acid co-catalysts Chemical Science. 6: 4291-4299. DOI: 10.1039/c5sc01467k  1
2014 Greenburg ZR, Jin D, G Williard P, Bernskoetter WH. Nickel promoted functionalization of CO2 to anhydrides and ketoacids. Dalton Transactions (Cambridge, England : 2003). 43: 15990-6. PMID 25232928 DOI: 10.1039/c4dt01221f  1
2014 Xu H, Williard PG, Bernskoetter WH. C-H bond activation and S-atom transfer from cobalt(III) thiolate and isothiocyanate complexes. Dalton Transactions (Cambridge, England : 2003). 43: 14696-700. PMID 25142273 DOI: 10.1039/c4dt01823k  1
2014 Xu H, Williard PG, Bernskoetter WH. C-H bond activation and S-atom transfer from cobalt(III) thiolate and isothiocyanate complexes. Dalton Transactions (Cambridge, England : 2003). 43: 14696-700. PMID 25142273 DOI: 10.1039/c4dt01823k  1
2014 Tran CT, Williard PG, Kim E. Nitric oxide reactivity of [2Fe-2S] clusters leading to H2S generation. Journal of the American Chemical Society. 136: 11874-7. PMID 25113815 DOI: 10.1021/ja505415c  1
2014 Su C, Guang J, Li W, Wu K, Hopson R, Williard PG. Chiral lithium diamides derived from linked N-isopropyl valinol or alaninol. Journal of the American Chemical Society. 136: 11735-47. PMID 25053148 DOI: 10.1021/ja505179y  1
2014 Su C, Guang J, Li W, Wu K, Hopson R, Williard PG. Chiral lithium diamides derived from linked N-isopropyl valinol or alaninol. Journal of the American Chemical Society. 136: 11735-47. PMID 25053148 DOI: 10.1021/ja505179y  1
2014 Chen J, Zhang QF, Williard PG, Wang LS. Synthesis and structure determination of a new Au(20) nanocluster protected by tripodal tetraphosphine ligands. Inorganic Chemistry. 53: 3932-4. PMID 24684605 DOI: 10.1021/ic500562r  1
2014 Jin D, Williard PG, Hazari N, Bernskoetter WH. Effect of sodium cation on metallacycle β-hydride elimination in CO2-ethylene coupling to acrylates. Chemistry (Weinheim An Der Bergstrasse, Germany). 20: 3205-11. PMID 24519890 DOI: 10.1002/chem.201304196  1
2014 Su C, Hopson R, Williard PG. Influence of steric factors on chiral lithium amide aggregates. Journal of the American Chemical Society. 136: 3246-55. PMID 24451022 DOI: 10.1021/ja4123957  1
2014 Su C, Guang J, Williard PG. Structures of lithium N-monosubstituted anilides: trisolvated monomer to tetrasolvated dimer. The Journal of Organic Chemistry. 79: 1032-9. PMID 24364386 DOI: 10.1021/jo402498z  1
2014 Chen J, Zhang QF, Bonaccorso TA, Williard PG, Wang LS. Controlling gold nanoclusters by diphospine ligands. Journal of the American Chemical Society. 136: 92-5. PMID 24351099 DOI: 10.1021/ja411061e  1
2014 Hanna BS, Macintosh AD, Ahn S, Tyler BT, Palmore GTR, Williard PG, Bernskoetter WH. Ancillary ligand effects on carbon dioxide-ethylene coupling at zerovalent molybdenum Organometallics. 33: 3425-3432. DOI: 10.1021/om500324h  1
2014 Rasapalli S, Jarugumilli G, Yarrapothu GR, Ijaz H, Golen JA, Williard PG. Studies towards the total synthesis of hygrocins A and B Tetrahedron Letters. 55: 821-825. DOI: 10.1016/j.tetlet.2013.12.017  1
2014 Leonard NG, Parker GV, Williard PG, Bernskoetter WH. Coordination Chemistry of Iridium Phosphine–Sulfonate Complexes Journal of Inorganic and Organometallic Polymers and Materials. 24: 157-163. DOI: 10.1007/s10904-013-9966-y  1
2013 Nelson CD, Carney DW, Derdowski A, Lipovsky A, Gee GV, O'Hara B, Williard P, DiMaio D, Sello JK, Atwood WJ. A retrograde trafficking inhibitor of ricin and Shiga-like toxins inhibits infection of cells by human and monkey polyomaviruses. Mbio. 4: e00729-13. PMID 24222489 DOI: 10.1128/mBio.00729-13  1
2013 Su C, Hopson R, Williard PG. Isotopically enriched 13C diffusion-ordered NMR spectroscopy: analysis of methyllithium. The Journal of Organic Chemistry. 78: 11733-46. PMID 24134615 DOI: 10.1021/jo401740g  1
2013 Su C, Hopson R, Williard PG. Isotopically enriched 13C diffusion-ordered NMR spectroscopy: analysis of methyllithium. The Journal of Organic Chemistry. 78: 11733-46. PMID 24134615 DOI: 10.1021/jo401740g  1
2013 Su C, Hopson R, Williard PG. Mixed aggregates of an alkyl lithium reagent and a chiral lithium amide derived from N-ethyl-O-triisopropylsilyl valinol. Journal of the American Chemical Society. 135: 14367-79. PMID 23980610 DOI: 10.1021/ja406912h  1
2013 Su C, Hopson R, Williard PG. Mixed aggregates of an alkyl lithium reagent and a chiral lithium amide derived from N-ethyl-O-triisopropylsilyl valinol. Journal of the American Chemical Society. 135: 14367-79. PMID 23980610 DOI: 10.1021/ja406912h  1
2013 Su C, Hopson R, Williard PG. Characterization of cyclopentyllithium and cyclopentyllithium tetrahydrofuran complex. Journal of the American Chemical Society. 135: 12400-6. PMID 23875807 DOI: 10.1021/ja4059102  1
2013 Su C, Hopson R, Williard PG. Characterization of cyclopentyllithium and cyclopentyllithium tetrahydrofuran complex. Journal of the American Chemical Society. 135: 12400-6. PMID 23875807 DOI: 10.1021/ja4059102  1
2013 Seo J, Williard PG, Kim E. Deoxygenation of mono-oxo bis(dithiolene) Mo and W complexes by protonation. Inorganic Chemistry. 52: 8706-12. PMID 23865493 DOI: 10.1021/ic4008747  1
2013 Su C, Hopson R, Williard PG. Crystal structure and solution state characterization of lithium (S)-(1-(bis(2-methoxyethyl)amino)-3-methylbutan-2-yl)(methyl)amide. The Journal of Organic Chemistry. 78: 7288-92. PMID 23767993 DOI: 10.1021/jo400839q  1
2013 Su C, Hopson R, Williard PG. Crystal structure and solution state characterization of lithium (S)-(1-(bis(2-methoxyethyl)amino)-3-methylbutan-2-yl)(methyl)amide. The Journal of Organic Chemistry. 78: 7288-92. PMID 23767993 DOI: 10.1021/jo400839q  1
2013 Zhang Y, Hanna BS, Dineen A, Williard PG, Bernskoetter WH. Functionalization of carbon dioxide with ethylene at molybdenum hydride complexes Organometallics. 32: 3969-3979. DOI: 10.1021/om400448m  1
2013 Jin D, Schmeier TJ, Williard PG, Hazari N, Bernskoetter WH. Lewis acid induced β-elimination from a nickelalactone: Efforts toward acrylate production from CO2 and ethylene Organometallics. 32: 2152-2159. DOI: 10.1021/om400025h  1
2013 Xu H, Williard PG, Bernskoetter WH. Intermolecular methyl group exchange and reversible P-Me bond cleavage at cobalt(III) dimethyl halide species Organometallics. 32: 798-806. DOI: 10.1021/om3009537  1
2013 Su C, Hopson R, Williard PG. Characterization of hexameric and octameric sec-butyllithium/sec-butoxide mixed aggregates European Journal of Inorganic Chemistry. 4136-4141. DOI: 10.1002/ejic.201300749  1
2012 Beng TK, Tyree WS, Parker T, Su C, Williard PG, Gawley RE. Dynamics of catalytic resolution of 2-lithio-N-Boc-piperidine by ligand exchange. Journal of the American Chemical Society. 134: 16845-55. PMID 22967289 DOI: 10.1021/ja307796e  1
2012 Beng TK, Tyree WS, Parker T, Su C, Williard PG, Gawley RE. Dynamics of catalytic resolution of 2-lithio-N-Boc-piperidine by ligand exchange. Journal of the American Chemical Society. 134: 16845-55. PMID 22967289 DOI: 10.1021/ja307796e  1
2012 Skodje KM, Williard PG, Kim E. Conversion of {Fe(NO)2}10 dinitrosyl iron to nitrato iron(III) species by molecular oxygen. Dalton Transactions (Cambridge, England : 2003). 41: 7849-51. PMID 22538296 DOI: 10.1039/c2dt30443k  1
2012 Xu H, Williard PG, Bernskoetter WH. C-CN bond activation of acetonitrile using cobalt(I) Organometallics. 31: 1588-1590. DOI: 10.1021/om201270n  1
2011 Annese C, Fanizza I, Calvano CD, D'Accolti L, Fusco C, Curci R, Williard PG. Selective synthesis of hydroxy analogues of valinomycin using dioxiranes. Organic Letters. 13: 5096-9. PMID 21905749 DOI: 10.1021/ol201971v  1
2011 Kagan G, Li W, Li D, Hopson R, Williard PG. Characterization of dimeric chiral lithium amide structures derived from N-isopropyl-O- triisopropylsilyl valinol. Journal of the American Chemical Society. 133: 6596-602. PMID 21486016 DOI: 10.1021/ja109041z  1
2011 Leonard NG, Williard PG, Bernskoetter WH. Synthesis and coordination chemistry of organoiridium complexes supported by an anionic tridentate ligand. Dalton Transactions (Cambridge, England : 2003). 40: 4300-6. PMID 21394366 DOI: 10.1039/c1dt10037h  1
2011 Leonard NG, Williard PG, Bernskoetter WH. Synthesis and coordination chemistry of organoiridium complexes supported by an anionic tridentate ligand. Dalton Transactions (Cambridge, England : 2003). 40: 4300-6. PMID 21394366 DOI: 10.1039/c1dt10037h  1
2011 Kagan G, Li W, Sun C, Hopson R, Williard PG. Synthesis, characterization, and reaction of a ketone-derived 1,4-dienolate compound. The Journal of Organic Chemistry. 76: 65-70. PMID 21141914 DOI: 10.1021/jo1015163  1
2011 Kagan G, Li W, Sun C, Hopson R, Williard PG. Synthesis, characterization, and reaction of a ketone-derived 1,4-dienolate compound. The Journal of Organic Chemistry. 76: 65-70. PMID 21141914 DOI: 10.1021/jo1015163  1
2011 Li W, Kagan G, Hopson R, Williard PG. Measurement of solution viscosity via diffusion-ordered NMR spectroscopy (DOSY) Journal of Chemical Education. 88: 1331-1335. DOI: 10.1021/ed100941t  1
2011 Henderson KW, Dorigo AE, MacEwan GJ, Williard PG. Structure of an unsymmetrical heptalithium cage complex containing aldolate and enolized aldolate dianion Tetrahedron. 67: 10291-10295. DOI: 10.1016/j.tet.2011.10.047  1
2011 Li W, Kagan G, Hopson R, Williard PG. Application of 6Li diffusion-ordered NMR spectroscopy (DOSY) to confirming the solution structure of n-butyllithium Arkivoc. 2011: 180-187.  1
2010 Su C, Williard PG. Isomerization of allyl ethers initiated by lithium diisopropylamide. Organic Letters. 12: 5378-81. PMID 21053981 DOI: 10.1021/ol102029u  1
2010 Su C, Williard PG. Isomerization of allyl ethers initiated by lithium diisopropylamide. Organic Letters. 12: 5378-81. PMID 21053981 DOI: 10.1021/ol102029u  1
2010 Annese C, D'Accolti L, De Zotti M, Fusco C, Toniolo C, Williard PG, Curci R. Concerning selectivity in the oxidation of peptides by dioxiranes. Further insight into the effect of carbamate protecting groups. The Journal of Organic Chemistry. 75: 4812-6. PMID 20560586 DOI: 10.1021/jo100855h  1
2010 Annese C, D'Accolti L, De Zotti M, Fusco C, Toniolo C, Williard PG, Curci R. Concerning selectivity in the oxidation of peptides by dioxiranes. Further insight into the effect of carbamate protecting groups. The Journal of Organic Chemistry. 75: 4812-6. PMID 20560586 DOI: 10.1021/jo100855h  1
2010 Li W, Kagan G, Yang H, Cai C, Hopson R, Sweigart DA, Williard PG. Physically separated references for diffusion coefficient-formula weight (D-FW) analysis of diffusion-ordered NMR spectroscopy (DOSY) in water. Organic Letters. 12: 2698-701. PMID 20481557 DOI: 10.1021/ol100686e  1
2010 Kagan G, Li W, Hopson R, Williard PG. 6Li diffusion-ordered NMR spectroscopy (DOSY) and applications to organometallic complexes. Organic Letters. 12: 520-3. PMID 20041695 DOI: 10.1021/ol902713h  1
2010 Li W, Kagan G, Yang H, Cai C, Hopson R, Dai W, Sweigart DA, Williard PG. Accurate formula weight determination in physically separated systems by diffusion coefficient-formula weight correlation Organometallics. 29: 1309-1311. DOI: 10.1021/om901102b  1
2010 Socha AM, Kagan G, Li W, Hopson R, Sello JK, Williard PG. Diffusion coefficient-formula weight correlation analysis via diffusion-ordered nuclear magnetic resonance spectroscopy (DOSY NMR) to examine acylglycerol mixtures and biodiesel production Energy and Fuels. 24: 4518-4521. DOI: 10.1021/ef100545a  1
2010 Kagan GL, Socha AM, Li W, Hopson R, Sello JK, Williard PG. Diffusion coefficient-formula weight correlation analysis via DOSY NMR to examine acylglyceride mixtures and biodiesel production Acs National Meeting Book of Abstracts 1
2009 Kagan G, Li W, Hopson R, Williard PG. Internally referenced diffusion coefficient-formula weight (D-FW) analysis of 31P diffusion-ordered NMR spectroscopy (DOSY). Organic Letters. 11: 4818-21. PMID 19788266 DOI: 10.1021/ol9019106  1
2009 Li D, Kagan G, Hopson R, Williard PG. Formula weight prediction by internal reference diffusion-ordered NMR spectroscopy (DOSY). Journal of the American Chemical Society. 131: 5627-34. PMID 19323518 DOI: 10.1021/ja810154u  1
2009 Li D, Keresztes I, Hopson R, Williard PG. Characterization of reactive intermediates by multinuclear diffusion-ordered NMR spectroscopy (DOSY). Accounts of Chemical Research. 42: 270-80. PMID 19105594 DOI: 10.1021/ar800127e  1
2008 Li D, Sun C, Williard PG. Characterization of a chiral enolate aggregate and observation of 6Li-1H scalar coupling. Journal of the American Chemical Society. 130: 11726-36. PMID 18693723 DOI: 10.1021/ja802114j  1
2008 Liu J, Li D, Sun C, Williard PG. Analysis of an asymmetric addition with a 2:1 mixed lithium amide/n-butyllithium aggregate. The Journal of Organic Chemistry. 73: 4045-52. PMID 18459811 DOI: 10.1021/jo800592d  1
2008 Liu J, Li D, Sun C, Williard PG. Analysis of an asymmetric addition with a 2:1 mixed lithium amide/n-butyllithium aggregate. The Journal of Organic Chemistry. 73: 4045-52. PMID 18459811 DOI: 10.1021/jo800592d  1
2008 Li D, Sun C, Liu J, Hopson R, Li W, Williard PG. Aggregation studies of complexes containing a chiral lithium amide and n-Butyllithium. The Journal of Organic Chemistry. 73: 2373-81. PMID 18294002 DOI: 10.1021/jo702655m  1
2008 Li D, Hopson R, Li W, Liu J, Williard PG. 13C INEPT diffusion-ordered NMR spectroscopy (DOSY) with internal references. Organic Letters. 10: 909-11. PMID 18251549 DOI: 10.1021/ol703039v  1
2007 Rella MR, Williard PG. Oxidation of peptides by methyl(trifluoromethyl)dioxirane: the protecting group matters. The Journal of Organic Chemistry. 72: 525-31. PMID 17221970 DOI: 10.1021/jo061910n  1
2007 Rella MR, Williard PG. Oxidation of peptides by methyl(trifluoromethyl)dioxirane: the protecting group matters. The Journal of Organic Chemistry. 72: 525-31. PMID 17221970 DOI: 10.1021/jo061910n  1
2007 Ma L, Hopson R, Li D, Zhang Y, Williard PG. Synthesis and structural characterization of the bis(diisopropylamino)boron enolate of tert-butyl methyl ketone Organometallics. 26: 5834-5839. DOI: 10.1021/om700676w  1
2006 Ma L, Williard PG. Synthesis of Polymer-supported Chiral Lithium Amide Bases and Application in Asymmetric Deprotonation of Prochiral Cyclic Ketones. Tetrahedron, Asymmetry. 17: 3021-3029. PMID 18026563 DOI: 10.1016/j.tetasy.2006.11.011  1
2006 Ma L, Williard PG. Synthesis of Polymer-supported Chiral Lithium Amide Bases and Application in Asymmetric Deprotonation of Prochiral Cyclic Ketones. Tetrahedron, Asymmetry. 17: 3021-3029. PMID 18026563 DOI: 10.1016/j.tetasy.2006.11.011  1
2005 Jacobson MA, Keresztes I, Williard PG. On the mechanism of THF catalyzed vinylic lithiation of allylamine derivatives: structural studies using 2-D and diffusion-ordered NMR spectroscopy. Journal of the American Chemical Society. 127: 4965-75. PMID 15796563 DOI: 10.1021/ja0479540  1
2004 Haeffner F, Jacobson MA, Keresztes I, Williard PG. Density functional theory studies on the mechanisms of regioselective allylic and cis-vinylic deprotonation of allyl amides and allylamines. Journal of the American Chemical Society. 126: 17032-9. PMID 15612742 DOI: 10.1021/ja0487731  1
2004 D'Accolti L, Fusco C, Annese C, Rella MR, Turteltaub JS, Williard PG, Curci R. Concerning the efficient conversion of epoxy alcohols into epoxy ketones using dioxiranes. The Journal of Organic Chemistry. 69: 8510-3. PMID 15549832 DOI: 10.1021/jo048816w  1
2004 Golen JA, Williard PG, Ram S, Sachdeva YP, Wilson DK, Zhar S, Verma RK. Crystal structure of 5-hydroxy-2,3,8,8-tetramethyl-4H,8H-benzo[1,2-b: 5,4-b′]dipyran-4-one, C16H16O4 Zeitschrift Fur Kristallographie - New Crystal Structures. 219: 405-406.  1
2002 Jacobson MA, Williard PG. Generation of 1-azapentadienyl anion from N-(tert-butyldimethylsilyl)-3-buten-1-amine. The Journal of Organic Chemistry. 67: 3915-8. PMID 12027714 DOI: 10.1021/jo0162336  1
2002 Jacobson MA, Williard PG. Synthesis of 2,3-disubstituted pyrroles from 3,N-dilithio-N-(tert-butyldimethylsilyl)-2-buten-1-amine. The Journal of Organic Chemistry. 67: 32-7. PMID 11777436 DOI: 10.1021/jo015638n  1
2001 Kinoshita K, Williard PG, Khosla C, Cane DE. Precursor-directed biosynthesis of 16-membered macrolides by the erythromycin polyketide synthase. Journal of the American Chemical Society. 123: 2495-502. PMID 11456917 DOI: 10.1021/ja004139l  1
2000 Williard PG, Jacobson MA. Dianion aggregates derived from lithiation of N-silyl allylamine. Organic Letters. 2: 2753-5. PMID 10964357  1
2000 Lee NE, Williard PG, Brown AJ, Campbell MJ, Koeffler HP, Peleg S, Rao DS, Reddy GS. Synthesis and biological activities of the two C(23) epimers of 1alpha,23,25-trihydroxy-24-oxo-19-nor-vitamin D(3): novel analogs of 1alpha,23(S),25-trihydroxy-24-oxo-vitamin D(3), a natural metabolite of 1alpha,25-dihydroxyvitamin D(3). Steroids. 65: 252-65. PMID 10751637 DOI: 10.1016/S0039-128X(99)00110-5  1
2000 Hæffner F, Sun C, Williard PG. Mechanistic variations due to the solvation state in the reaction of MeLi in dimer and trimer aggregates with formaldehyde Journal of the American Chemical Society. 122: 12542-12546. DOI: 10.1021/ja002380u  1
2000 Keresztes I, Williard PG. Diffusion-ordered NMR spectroscopy (DOSY) of THF solvated N-butyllithium aggregates [12] Journal of the American Chemical Society. 122: 10228-10229. DOI: 10.1021/ja002278x  1
2000 Sun C, Williard PG. Mixed aggregates: Lithium enolate of 3-pentanone and a chiral lithium amide [10] Journal of the American Chemical Society. 122: 7829-7830. DOI: 10.1021/ja001372a  1
1999 Isaka M, Williard PG, Nakamura E. [3 + 2] Cycloaddition of allylic silane with N-chlorosulfonyl isocyanate Bulletin of the Chemical Society of Japan. 72: 2115-2116. DOI: 10.1246/bcsj.72.2115  1
1999 Henderson KW, Williard PG. Mono- and dilithiation of primary amine/secondary amine mixtures: Transamination, solvation, and cocomplexation Organometallics. 18: 5620-5626.  1
1998 Meyers AI, Seefeld MA, Lefker BA, Blake JF, Williard PG. Stereoselective alkylations in rigid systems. Effect of remote substituents on π-facial additions to lactam enolates. Stereoelectronic and steric effects Journal of the American Chemical Society. 120: 7429-7438. DOI: 10.1021/ja980614s  1
1998 Nair V, Nair JS, Kumar S, Rath NP, Williard PG, Eigendorf GK. A novel isomerization of 6,6-tetramethylenefulvene to cyclopent-1-enyl cyclopentadiene and its cycloaddition reactions: Synthesis of polycyclic molecular frameworks Tetrahedron Letters. 39: 4603-4606. DOI: 10.1016/S0040-4039(98)00849-1  1
1997 Lee NE, Reddy GS, Brown AJ, Williard PG. Synthesis, stereochemistry, and biological activity of 1alpha,23,25-trihydroxy-24-oxovitamin D3, a major natural metabolite of 1alpha,25-dihydroxyvitamin D3. Biochemistry. 36: 9429-37. PMID 9235987 DOI: 10.1021/bi962080i  1
1997 Williard PG, Sun C. Mixed aggregates containing n-butyl, sec-butyl-, or tert-butyllithium and a chiral lithium amide derived from N-isopropl-O-methyl valinol Journal of the American Chemical Society. 119: 11693-11694. DOI: 10.1021/ja972277d  1
1997 Henderson KW, Dorigo AE, Liu QY, Williard PG. Effect of polydentate donor molecules on lithium hexamethyldisilazide aggregation: An X-ray crystallographic and a combination semiempirical PM3/single point ab initio theoretical study Journal of the American Chemical Society. 119: 11855-11863. DOI: 10.1021/ja971920t  1
1997 Waldmuller D, Kotsatos BJ, Nichols MA, Williard PG. Synthesis of [15N,15N']-N,N,N',N'-tetramethyl-ethylenediamine and its use in solvation studies of [6Li]-n-butyllithium [18] Journal of the American Chemical Society. 119: 5479-5480. DOI: 10.1021/ja970557n  1
1997 Nair V, Anilkumar G, Prabhakaran J, Maliakal D, Eigendorf GK, Williard PG. Photochemical di-π-methane rearrangement of quinoxalinobarrelenes Journal of Photochemistry and Photobiology a: Chemistry. 111: 57-59.  1
1997 Sanders TC, Golen JA, Williard PG, Hammond GB. The crystal structure of 2-fluoro-1-(p-methoxyphenyl)-1-penten-3-yne, a fluorinated vinylacetylene prepared via Horner-Wadsworth-Emmons condensation Journal of Fluorine Chemistry. 85: 173-175.  1
1996 Henderson KW, Dorigo AE, Liu QY, Williard PG, Schleyer PVR, Bernstein PR. Structural consequences of the addition of lithium halides in enolization and aldol reactions Journal of the American Chemical Society. 118: 1339-1347. DOI: 10.1021/ja9527838  1
1996 Nair V, Anilkumar G, Eigendorf GK, Williard PG. Borontrifluoride-etherate induced rearrangement of bicyclo[2.2.2]octene-7,8-diones: An efficient synthesis of bicyclo[3.2.1]octene-2,8-diones Tetrahedron Letters. 37: 8271-8272. DOI: 10.1016/0040-4039(96)01897-7  1
1996 Barnett NDR, Clegg W, Horsburgh L, Lindsay DM, Liu QY, Mackenzie FM, Mulvey RE, Williard PG. Novel octameric structure of the lithium primary amide [{BUtN(H)Li}8] and its implication for the directed synthesis of heterometallic imide cages Chemical Communications. 2321-2322.  1
1996 DeMendonca DJ, Hammond GB, Golen JA, Williard PG. Crystal structure of diethyl (1-hydroxy-1-methyl-3-phenyl-2-propynyl)-phosphonate, (C6H5)CC-C(OH)(CH3)-P(O)(OC2H 5)2 Zeitschrift Fur Kristallographie. 211: 833-834.  1
1996 Sanders TC, Hammond GB, Golen JA, Williard PG. Diethyl (1-hydroxy-2-butynyl)phosphonate Acta Crystallographica Section C: Crystal Structure Communications. 52: 667-669.  1
1996 Prayzner P, Ojadi ECA, Golen JA, Williard PG. 3,4-diphenylpyrrole-2,5-dicarboxylic acid acetic acid disolvate Acta Crystallographica Section C: Crystal Structure Communications. 52: 665-667.  1
1996 Prayzner P, Ojadi ECA, Golen JA, Williard PG. N-Acetyliminodiacetate dimethyl ester Acta Crystallographica Section C: Crystal Structure Communications. 52: 112-113.  1
1996 Henderson KW, Dorigo AE, Williard PG, Bernstein PR. A triple anion complex containing enolate, amide, and halide - A new structural type in lithium chemistry Angewandte Chemie - International Edition in English. 35: 1322-1324.  1
1995 Nair V, Kumar S, Williard PG. [4π+2π]Cycloadditions of o-quinones to fulvenes: A facile synthesis of bicyclo[2.2.2]octen-7,8-diones Tetrahedron Letters. 36: 1605-1608. DOI: 10.1016/0040-4039(95)00099-X  1
1995 Henderson KW, Walther DS, Williard PG. Identification of a unimetal complex of bases by 6Li NMR spectroscopy and single-crystal analysis Journal of the American Chemical Society. 117: 8680-8681.  1
1995 Henderson KW, Williard PG, Bernstein PR. Synthesis and characterization of the first mixed alkali metal enolate containing amine ligands: A novel "open-stack" structure and its implications for aldol addition Angewandte Chemie (International Edition in English). 34: 1117-1119.  1
1995 Woo K, Williard PG, Sweigart DA, Duffy NW, Robinson BH, Simpson J. The synthesis and electrophilic reactivity of manganese tricarbonyl complexes of the C-ring aromatic diterpenoid methyl O-methylpodocarpate Journal of Organometallic Chemistry. 487: 111-118.  1
1994 Williard PG, Liu QY. Complexes between fluorobenzenes and lithium hexamethyldisilazide dimer Journal of Organic Chemistry. 59: 1596-1597.  1
1994 Winkler JD, Henegar KE, Hong BC, Williard PG. Inside-outside stereoisomerism. 6. + synthesis of trans-bicyclo[4.4.1]undecan-11-one and the first stereoselective construction of the tricyclic nucleus of the ring system of the ingenane diterpenes Journal of the American Chemical Society. 116: 4183-4188.  1
1994 Nichols MA, Waldmüller D, Williard PG. 6Li and 15N nuclear magnetic resonance studies of mixed alkali metal cation hexamethyldisilazide bases Journal of the American Chemical Society. 116: 1153-1154.  1
1993 Ryan WJ, Peterson PE, Cao Y, Williard PG, Sweigart DA, Baer CD, Thompson CF, Chung YK, Chung TM. Synthesis and reactivity of (indole)Mn(CO)3 + complexes. Electrophilic activation of the indole 4 and 7 positions Inorganica Chimica Acta. 211: 1-3. DOI: 10.1016/S0020-1693(00)82834-0  1
1993 Nichols MA, Williard PG. Solid-state structures of n-butyllithium-TMEDA, -THF, and -DME complexes Journal of the American Chemical Society. 115: 1568-1572.  1
1993 Williard PG, Salvino JM. Synthesis, isolation, and structure of an LDA-THF complex Journal of Organic Chemistry. 58: 1-3.  1
1993 Jackman LM, Çizmeciyan D, Williard PG, Nichols MA. Hexameric lithium phenolate. Crystal structures and7Li quadrupole coupling in solid and solution phases Journal of the American Chemical Society. 115: 6262-6267.  1
1993 Winkler JD, Gretler EA, Williard PG. Studies directed toward the synthesis of the ingenane diterpenes. An unexpected synthesis of trans-bicyclo[5.3.0]decanes Journal of Organic Chemistry. 58: 1973-1975.  1
1993 Nakamura E, Tanaka K, Fujimura T, Aoki S, Williard PG. Acyclic stereocontrol in fischer carbene chemistry by syn-selective Michael addition/trapping sequence Journal of the American Chemical Society. 115: 9015-9020.  1
1992 Fryhle CB, Williard PG, Carol M. R. Synthesis of (4E)-7-methoxytetradec-4-enoic acid: a novel fatty acid from lyngbya majuscula Tetrahedron Letters. 33: 2327-2330. DOI: 10.1016/S0040-4039(00)74202-X  1
1992 Oto?an K, Mintas M, Kastner F, Mannschreck A, Golen JA, Williard PG. Regiospecific synthesis and structural study of some trifluoromethyl substituted dibenzosemibullvalenes Monatshefte FüR Chemie Chemical Monthly. 123: 1193-1205. DOI: 10.1007/BF00808282  1
1992 Cane DE, Sohng JK, Williard PG. Isolation and structure determination of pentalenolactones A, B, D, and F Journal of Organic Chemistry. 57: 844-851.  1
1992 Bernstein MP, Romesberg FE, Fuller DJ, Harrison AT, Collum DB, Liu QY, Williard PG. Structure and reactivity of lithium diisopropylamide in the presence of N,N,N′,N′-tetramethylethylenediamine Journal of the American Chemical Society. 114: 5100-5110.  1
1992 Dittami JP, Nie XY, Nie H, Ramanathan H, Buntel C, Rigatti S, Bordner J, Decosta DL, Williard P. Tandem photocyclization-intramolecular addition reactions of aryl vinyl sulfides. Observation of a novel [2 + 2] cycloaddition-allylic sulfide rearrangement Journal of Organic Chemistry. 57: 1151-1158.  1
1991 Nakamura E, Kuwajima I, Williard PG. Structure of (+/-)-(2S,1'S)-2-[hydroxy(phenyl)methyl]-2-methylcyclohexanone, C14H1802. Acta Crystallographica. Section C, Crystal Structure Communications. 47: 984-5. PMID 1930819 DOI: 10.1107/S010827019000909X  1
1991 Winkler JD, Hong BC, Hey JP, Williard PG. Inside-outside stereoisomerism. 5. Synthesis and reactivity of trans-bicyclo[n.3.1]alkanones prepared via the intramolecular photocycloaddition of dioxenones Journal of the American Chemical Society. 113: 8839-8846.  1
1991 Wilen SH, Qi JZ, Williard PG. Resolution, asymmetric transformation, and configuration of Tröger's base. Application of Tröger's base as a chiral solvating agent Journal of Organic Chemistry. 56: 485-487.  1
1991 Park KP, Ha HJ, Williard PG. Stereochemistry in nucleophilic vinylic substitution of activated nitro olefins. 2 Journal of Organic Chemistry. 56: 6725-6727.  1
1991 Kim YJ, Bernstein MP, Roth ASG, Romesberg FE, Williard PG, Fuller DJ, Harrison AT, Collum DB. On the structure and reactivity of lithium diisopropylamide (LDA) in hydrocarbon solutions. Formation of unsolvated ketone, ester, and carboxamide enolates Journal of Organic Chemistry. 56: 4435-4439.  1
1990 Wrensford G, Grab LA, Salvino JM, Williard PG. Synthesis of 3-bromo-6-ethenyltetrahydro-2,2,6-trimethyl-2h-pyran Tetrahedron Letters. 31: 4257-4260. DOI: 10.1016/S0040-4039(00)97594-4  1
1990 Winkler JD, Scott RD, Williard PG. Asymmetric induction in the vinylogous amide photocycloaddition reaction. A formal synthesis of vindorosine Journal of the American Chemical Society. 112: 8971-8975.  1
1990 Williard PG, Hintze MJ. Mixed aggregates: Crystal structures of a lithium ketone enolate/lithium amide and of a sodium ester enolate/sodium amide Journal of the American Chemical Society. 112: 8602-8604.  1
1989 Winkler JD, Muller CL, Hey JP, Ogilvie RJ, Haddad N, Squattrito PJ, Williard PG. The effect of chromophore transposition on the stereochemical outcome of the intramolecular dioxenone photocycloaddition reaction Tetrahedron Letters. 30: 5211-5214. DOI: 10.1016/S0040-4039(01)93744-X  1
1989 O'Connor SJ, Williard PG. Strategy for the synthesis of the C10C19 portion of amphidinoide-A Tetrahedron Letters. 30: 4637-4640. DOI: 10.1016/S0040-4039(01)80762-0  1
1989 Mintas M, Güsten H, Williard PG. Synthesis and [4 + 4] photodimerization of 9-trifluoromethylanthracene Journal of Photochemistry and Photobiology, a: Chemistry. 48: 341-344. DOI: 10.1016/1010-6030(89)87015-7  1
1989 Fraenkel G, Winchester WR, Williard PG. Lithio(diphenylphosphino)methane-tetramethylethylenediamine: Crystal structure and NMR studies of a coordinatively unsaturated, monomeric organolithium Organometallics. 8: 2308-2311.  1
1989 Williard PG, MacEwan GJ. Crystal structure of a unique aggregate containing lithium and potassium cations, ketone enolate, and tert-butoxide Journal of the American Chemical Society. 111: 7671-7672.  1
1989 Xu YC, Challener CA, Dragisich V, Brandvold TA, Peterson GA, Wulff WD, Williard PG. The generation of 2-vinylcyclopentene-1,3-diones via a five-component coupling in the coordination sphere of chromium Journal of the American Chemical Society. 111: 7269-7271.  1
1988 Williard PG, Sohng JK, Cane DE. The X-ray crystal structure of pentalenolactone F methyl ester (epi-pentalenolactone F). The Journal of Antibiotics. 41: 130-3. PMID 3346185  1
1988 Winkler JD, Hey JP, Williard PG. Inside-outside stereoisomerism III: The synthesis of trans-bicyclo[4.3.1]decan-10-one+ Tetrahedron Letters. 29: 4691-4694. DOI: 10.1016/S0040-4039(00)80582-1  1
1988 Mintas M, Schuster DI, Williard PG. Stereochemistry and mechanism of the [2 + 2] and [4 + 2] photocycloaddition of alkenes and dienes to pummerer's ketone Tetrahedron. 44: 6001-6012. DOI: 10.1016/S0040-4020(01)89788-X  1
1988 Jackman LM, Scarmoutzos LM, Smith BD, Williard PG. Structures of lithium salts of 2,3,3-trimethylindolenine and its 5-methoxy derivative in solution and the solid state Journal of the American Chemical Society. 110: 6058-6063.  1
1988 Williard PG, Tata JR, Schlessinger RH, Adams AD, Iwanowicz EJ. Remarkably similar solution and solid-state structures for two divergently reactive lithium enolates derived from vinylogous urethanes Journal of the American Chemical Society. 110: 7901-7903.  1
1988 Ittel SD, Whitney JF, Chung YK, Williard PG, Sweigart DA. X-ray structural studies of tricarbonyl(cyclohexadienyl)manganese, dicarbonylnitrosyl(cyclohexadienyl)manganese, and dicarbonylnitrosyl(cyclohexadiene)manganese complexes Organometallics. 7: 1323-1328.  1
1988 Mintas M, Schuster DI, Williard PG. Stereochemistry and mechanism of [4 + 2] photocycloaddition of Pummerer's ketone to furan Journal of the American Chemical Society. 110: 2305-2306.  1
1987 Williard PG, Hintze MJ. The first structural characterization of a dimeric lithium ketone enolate-lithium diisopropylamide complex [14] Journal of the American Chemical Society. 109: 5539-5541.  1
1987 Winkler JD, Henegar KE, Williard PG. Inside-outside stereoisomerism. 2. Synthesis of the carbocyclic ring system of the ingenane diterpenes via the intramolecular dioxolenone photocycloaddition Journal of the American Chemical Society. 109: 2850-2851.  1
1987 Winkler JD, Hey JP, Hannon FJ, Williard PG. Intramolecular photocycloadditions on dioxolenones: An efficient method for the synthesis of medium-sized rings Heterocycles. 25: 55-60.  1
1986 Williard PG, Carpenter GB. X-ray crystal structures of lithium, sodium, and potassium enolates of pinacolone. Journal of the American Chemical Society. 108: 462-8. PMID 22175461 DOI: 10.1021/ja00263a016  1
1986 Williard PG, Carpenter GB. X-ray crystal structures of lithium, sodium, and potassium enolates of pinacolone. Journal of the American Chemical Society. 108: 462-8. PMID 22175461 DOI: 10.1021/ja00263a016  1
1986 Williard PG, Salvino JM. X-ray crystal structure determination of a bromomagnesium ketone enolate Journal of the Chemical Society, Chemical Communications. 153-154. DOI: 10.1039/C39860000153  1
1986 Lee KS, Williard PG, Suggs JW. Structure of the simple lithium chelate (LiCH2CH2CH2NMe2)4 Journal of Organometallic Chemistry. 299: 311-317. DOI: 10.1016/0022-328X(86)84005-0  1
1986 Suggs JW, Wovkulich MJ, Williard PG, Lee KS. Reactivity patterns in the reactions of [Rh(CO)2Cl]2 with chelating ketones Journal of Organometallic Chemistry. 307: 71-82. DOI: 10.1016/0022-328X(86)80177-2  1
1986 Winkler JD, Hey JP, Williard PG. Inside-outside stereoisomerism: The synthesis of trans-bicyclo[5.3.1]undecan-11-one Journal of the American Chemical Society. 108: 6425-6427.  1
1986 Stevens RV, Beaulieu N, Chan WH, Daniewski AR, Takeda T, Waldner A, Williard PG, Zutter U. Studies on the synthesis of vitamin B12. 4 Journal of the American Chemical Society. 108: 1039-1049.  1
1985 Williard PG, Salvino JM. X-ray crystal structure of a lithium aldolate - a tetrameric aggregate Tetrahedron Letters. 26: 3931-3934. DOI: 10.1016/S0040-4039(00)98690-8  1
1985 Tanis SP, Abdallah YM, Williard PG. Selective rearrangements of 4a,5-epoxides of 4,4-dimethyl-1,2,3,4,6,8a-hexahydronaphthalenes. Tetrahedron Letters. 26: 3651-3654. DOI: 10.1016/S0040-4039(00)89214-X  1
1985 Koh JJ, Lee WH, Williard PG, Risen WM. The PtP(C6H11)3(C2H4)2 mediated activation of aldehyde CH bonds via chelate-assisted oxidative addition reactions Journal of Organometallic Chemistry. 284: 409-419. DOI: 10.1016/0022-328X(85)80038-3  1
1985 De Laszlo SE, Williard PG. Total synthesis of (+)-demethyldysidenin and (-)-demethylisodysidenin, hexachlorinated amino acids from the marine sponge Dysidea herbacea. Assignment of absolute stereochemistry Journal of the American Chemical Society. 107: 199-203.  1
1985 Honig ED, Meng QJ, Robinson WT, Williard PG, Sweigart DA. Nucleophilic addition to coordinated cycloheptatriene: A mechanistic and structural study Organometallics. 4: 871-877.  1
1985 Williard PG, De Laszlo SE. Total synthesis of halogenated monoterpene marine natural products via the Diels-Alder reaction Journal of Organic Chemistry. 50: 3738-3749.  1
1985 Williard PG, Carpenter GB. X-ray crystal structure of an unsolvated lithium enolate anion Journal of the American Chemical Society. 107: 3345-3346.  1
1984 Williard PG, Grab LA. Total synthesis of costatone: a monoterpene from the red seaweed: plocarnium costatum Tetrahedron Letters. 25: 5009-5012. DOI: 10.1016/S0040-4039(01)91104-9  1
1984 Jong TT, Williard PG, Porwoll JP. Total synthesis and X-ray structure determination of cyanobacterin Journal of Organic Chemistry. 49: 735-736.  1
1984 Polt RL, Stork G, Carpenter GB, Williard PG. X-ray crystal structure of N-(2-lithiocyclohexenyl)-N,N′,N′-trimethyl-1,3-propanediamine: A pentavalent lithium? Journal of the American Chemical Society. 106: 4276-4277.  1
1984 Williard PG, De Laszlo SE. Total synthesis of (±)-dysidin, a marine metabolite containing an N-acyl-O-methyltetramic acid Journal of Organic Chemistry. 49: 3489-3493.  1
1983 Williard PG, Grab LA, De Laszlo SE. Synthesis of costatolide, a halogenated monoterpenoid from the red alga Plocamium costatum Journal of Organic Chemistry. 48: 1123-1125.  1
1981 Williard PG, Grab LA, Springer JP. N-aryl sulfonyl hydrazimidates - hydrazones of esters Tetrahedron Letters. 22: 2731-2734. DOI: 10.1016/S0040-4039(01)90537-4  1
1980 Williard PG, Fryhle CB. Boron trihalide-methyl sulfide complexes as convenient reagents for dealkylation of aryl ethers Tetrahedron Letters. 21: 3731-3734. DOI: 10.1016/0040-4039(80)80164-X  1
1977 Stork G, Williard PG. Five- and six-membered-ring formation from olefinic α,β-epoxy ketones and hydrazine [7] Journal of the American Chemical Society. 99: 7067-7068.  1
1973 Heine HW, Hoye TR, Williard PG, Hoye RC. Diaziridines. II. The addition of diaziridines to electrophilic acetylenes Journal of Organic Chemistry. 38: 2984-2988.  1
1972 Heine HW, Williard PG, Hoye TR. The synthesis and reactions of some 1-(nitroaryl)diaziridines Journal of Organic Chemistry. 37: 2980-2983.  1
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