Asish Ranjan Das - Publications

1996- University of Calcutta, Kolkata, West Bengal, India 
Synthetic organic chemistry

63 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
2023 Sarkar A, Saha M, Das AR. Ru(II) catalyzed chelation assisted C(sp)-H bond functionalization along with concomitant (4 + 2) annulation. Organic & Biomolecular Chemistry. PMID 37357884 DOI: 10.1039/d3ob00828b  0.304
2023 Das D, Das A, Islam S, Das AR, Banerjee A, Majumder R, Bandyopadhyay D. Fused Furan Moieties from Enol-like Compounds and β-Keto Sulfoxonium Ylides Involving sp C-H Activation and Concomitant Tandem C-O Annulation. Organic Letters. 25: 4493-4497. PMID 37294033 DOI: 10.1021/acs.orglett.3c01455  0.37
2022 Das D, Das AR. Access to π-Extended Heterocycles Containing Pyrrolo-Coumarin Cores Involving -COCH as a Traceless Directing Group and Materializing Two Successive spC-H/spN-H and spC-H/spN-H Activations. The Journal of Organic Chemistry. 87: 11443-11456. PMID 36000720 DOI: 10.1021/acs.joc.2c00958  0.321
2022 Mandal RD, Saha M, Das AR. Accessing oxy-functionalized N-heterocycles through rose bengal and TBHP integrated photoredox C(sp)-O cross-coupling. Organic & Biomolecular Chemistry. 20: 2939-2963. PMID 35332896 DOI: 10.1039/d2ob00381c  0.333
2022 Dhara S, Ghosh S, Das AR. An iron-catalyzed domino reaction of donor-acceptor cyclopropanes: a diastereoselective approach towards diversely functionalized pyrrolo-quinazolines. Organic & Biomolecular Chemistry. PMID 35014658 DOI: 10.1039/d1ob02215f  0.353
2020 Das D, Mukherjee P, Das AR. "On water" palladium catalyzed diastereoselective boronic acid addition to structurally diverse cyclopropane nitriles. Organic & Biomolecular Chemistry. PMID 33108794 DOI: 10.1039/d0ob00077a  0.473
2020 Saha M, Das AR. Hypervalent iodine promoted ortho diversification: 2-aryl benzimidazole, quinazoline and imidazopyridine as directing templates. Organic & Biomolecular Chemistry. PMID 31922163 DOI: 10.1039/C9Ob02533B  0.49
2018 Mukherjee P, Das AR, Mishra R, Bhowmick S, Saha A. Synthesis of Novel tricyclic pyrazolo(1,4)oxathiinopyrazines and Evaluation of Their Competency Towards the Inhibition of Lactate Dehydrogenase Activity-Inhibition of LDH Activity. Drug Research. PMID 29895087 DOI: 10.1055/A-0630-4988  0.349
2018 Saha M, Das AR. I2/TBHP promoted oxidative C–N bond formation at room temperature: Divergent access of 2-substituted benzimidazoles involving ring distortion Tetrahedron Letters. 59: 2520-2525. DOI: 10.1016/J.Tetlet.2018.05.028  0.456
2017 Mukherjee P, Das AR. One-flask synthesis of pyrazolone thioethers involving catalyzed and uncatalyzed thioetherification pathways of pyrazolones. Organic & Biomolecular Chemistry. PMID 28832050 DOI: 10.1039/C7Ob01754E  0.451
2017 Kausar N, Masum AA, Islam MM, Das AR. A green synthetic approach toward the synthesis of structurally diverse spirooxindole derivative libraries under catalyst-free conditions. Molecular Diversity. PMID 28190223 DOI: 10.1007/S11030-017-9728-9  0.795
2017 Mukherjee P, Das AR. Spiro-cyclopropanes from Intramolecular Cyclopropanation of Pyranopyrazoles and Pyranopyrimidine-diones and Lewis Acid Mediated (3+2)-Cycloadditions of Spirocyclopropylpyrazolones. The Journal of Organic Chemistry. PMID 28182406 DOI: 10.1021/Acs.Joc.7B00089  0.529
2017 Kausar N, Das AR. CuI–Zn(OAc) 2 catalyzed C(sp 2 )–H activation for the synthesis of pyridocoumarins through an uncommon Cu I –Cu III switching mechanism: A fast, solvent-free, combo-catalytic, ball milling approach Tetrahedron Letters. 58: 2602-2607. DOI: 10.1016/J.Tetlet.2017.05.074  0.797
2017 Saha M, Mukherjee P, Das AR. A facile and versatile protocol for the one-pot PhI(OAc)2 mediated divergent synthesis of quinazolines from 2-aminobenzylamine Tetrahedron Letters. 58: 2044-2049. DOI: 10.1016/J.Tetlet.2017.04.036  0.533
2017 Saha M, Mukherjee P, Das AR. Practical application of PhI(OAc)2/I2 combination to synthesize benzimidazoles from 2-aminobenzylamine through ring distortion strategy Tetrahedron Letters. 58: 1046-1049. DOI: 10.1016/J.Tetlet.2017.01.099  0.538
2016 Mukherjee P, Das AR. Diastereoselective synthesis of structurally and stereochemically diversified 2-oxa-7-azabicyclo[4.1.0]hept-3-enyl carboxylates and their potential application towards the synthesis of functionalized pyranooxazolone and pyrrole derivatives through skeletal transformations. The Journal of Organic Chemistry. PMID 27227655 DOI: 10.1021/Acs.Joc.6B00849  0.508
2016 Kausar N, Mukherjee P, Das AR. Practical carbocatalysis by graphene oxide nanosheets in aqueous medium towards the synthesis of diversified dibenzo[1,4]diazepine scaffolds Rsc Advances. 6: 88904-88910. DOI: 10.1039/C6Ra17520A  0.807
2016 Saha M, Pradhan K, Das AR. Facile and eco-friendly synthesis of chromeno[4,3-b]pyrrol-4(1H)-one derivatives applying magnetically recoverable nano crystalline CuFe2O4 involving a domino three-component reaction in aqueous media Rsc Advances. 6: 55033-55038. DOI: 10.1039/C6Ra06979G  0.552
2016 Kausar N, Roy I, Chattopadhyay D, Das AR. Synthesis of 2,3-dihydroquinazolinones and quinazolin-4(3H)-ones catalyzed by graphene oxide nanosheets in an aqueous medium: "on-water" synthesis accompanied by carbocatalysis and selective C-C bond cleavage Rsc Advances. 6: 22320-22330. DOI: 10.1039/C6Ra00388E  0.792
2015 Mukherjee P, Das AR. Facile synthesis of functionalized 6-cyano-2-oxa-7-azabicyclo[4.1.0]hept-3-en-1-yl acetates: A catalyst free approach to access the pyran fused 2-acetoxy-NH-aziridines Rsc Advances. 6: 132-139. DOI: 10.1039/C5Ra24510A  0.596
2015 Kausar N, Ghosh PP, Pal G, Das AR. Graphene oxide nanosheets: a highly efficient and reusable carbocatalyst catalyzes the Michael-cyclization reactions of 4-hydroxycoumarins, 4-hydroxypyrone and 4-hydroxy-1-methylquinolinone with chalcone derivatives in aqueous media Rsc Advances. 5: 60199-60207. DOI: 10.1039/C5Ra08776G  0.795
2015 Mukherjee P, Paul S, Das AR. Expeditious synthesis of functionalized tricyclic 4-spiro pyrano[2,3-c]pyrazoles in aqueous medium using dodecylbenzenesulphonic acid as a Brønsted acid-surfactant-combined catalyst New Journal of Chemistry. 39: 9480-9486. DOI: 10.1039/C5Nj01728A  0.82
2015 Pradhan K, Paul S, Das AR. Synthesis of indeno and acenaphtho cores containing dihydroxy indolone, pyrrole, coumarin and uracil fused heterocyclic motifs under sustainable conditions exploring the catalytic role of the SnO2 quantum dot Rsc Advances. 5: 12062-12070. DOI: 10.1039/C4Ra12618A  0.791
2014 Uozumi Y, Sakurai F, Paul S, Pradhan K, Ghosh S, De SK, Das AR. C–N, C–O, and C–C Bond-Forming Reactions with NiFe2O4 Nanoparticles Synfacts. 10: 766-766. DOI: 10.1055/S-0034-1378302  0.702
2014 Roy I, Bhattacharyya A, Sarkar G, Saha NR, Rana D, Ghosh PP, Palit M, Das AR, Chattopadhyay D. In situ synthesis of a reduced graphene oxide/cuprous oxide nanocomposite: A reusable catalyst Rsc Advances. 4: 52044-52052. DOI: 10.1039/C4Ra08127G  0.406
2014 Pal G, Paul S, Ghosh PP, Das AR. PhIO promoted synthesis of nitrile imines and nitrile oxides within a micellar core in aqueous media: a regiocontrolled approach to synthesizing densely functionalized pyrazole and isoxazoline derivatives Rsc Advances. 4: 8300. DOI: 10.1039/C3Ra46129G  0.782
2014 Pal G, Paul S, Das AR. A facile and efficient synthesis of functionalized 4-oxo-2-(phenylimino) thiazolidin-5-ylideneacetate derivatives via a CuFe2O4 magnetic nanoparticles catalyzed regioselective pathway New Journal of Chemistry. 38: 2787-2791. DOI: 10.1039/C3Nj01608K  0.807
2014 Pradhan K, Paul S, Das AR. Magnetically retrievable nano crystalline CuFe2O4 catalyzed multi-component reaction: a facile and efficient synthesis of functionalized dihydropyrano[2,3-c]pyrazole, pyrano[3,2-c]coumarin and 4H-chromene derivatives in aqueous media Catalysis Science & Technology. 4: 822-831. DOI: 10.1039/C3Cy00901G  0.806
2014 Paul S, Pradhan K, Ghosh S, De SK, Das AR. Uncapped SnO2 quantum dot catalyzed cascade assembling of four components: A rapid and green approach to the pyrano[2,3-c]pyrazole and spiro-2-oxindole derivatives Tetrahedron. 70: 6088-6099. DOI: 10.1016/J.Tet.2014.02.077  0.781
2014 Pradhan K, Paul S, Das AR. Synthesis of a diversified combinatorial library of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives applying sustainable carbon-based solid acid catalyst involving a domino four-component reaction Monatshefte Fur Chemie. 145: 1343-1352. DOI: 10.1007/S00706-014-1195-8  0.804
2014 Paul S, Pradhan K, Ghosh S, De SK, Das AR. Magnetically retrievable nano crystalline nickel ferrite- catalyzed aerobic, ligand-free C-N, C-O and C-C cross-coupling reactions for the synthesis of a diversified library of heterocyclic molecules Advanced Synthesis and Catalysis. 356: 1301-1316. DOI: 10.1002/Adsc.201300686  0.732
2013 Ghosh PP, Das AR. Nanocrystalline and reusable ZnO catalyst for the assembly of densely functionalized 4H-chromenes in aqueous medium via one-pot three component reactions: a greener "NOSE" approach. The Journal of Organic Chemistry. 78: 6170-81. PMID 23701231 DOI: 10.1021/Jo400763Z  0.586
2013 Medda A, Pal G, Singha R, Hossain T, Saha A, Das AR. Expedient synthesis of biologically potent aryloxycoumarins and (aryloxyimino)ethylcoumarins via copper(II)-promoted chan-lam coupling reaction Synthetic Communications. 43: 169-181. DOI: 10.1080/00397911.2011.594544  0.713
2013 Pal G, Paul S, Das AR. Alum-catalyzed synthesis of 3-(1H-pyrrol-2-yl)-2H-chromen-2-ones: A water-peg 400 binary solvent mediated, one-pot, three-component protocol Synthesis (Germany). 45: 1191-1200. DOI: 10.1055/S-0032-1318494  0.801
2013 Paul S, Ghosh S, Bhattacharyya P, Das AR. Synthesis of a SO3H-bearing carbonaceous solid catalyst, PEG–SAC: application for the easy access to a diversified library of pyran derivatives Rsc Advances. 3: 14254-14262. DOI: 10.1039/C3Ra42352B  0.8
2013 Ghosh PP, Mukherjee P, Das AR. Triton-X-100 catalyzed synthesis of 1,4-dihydropyridines and their aromatization to pyridines and a new one pot synthesis of pyridines using visible light in aqueous media Rsc Advances. 3: 8220-8226. DOI: 10.1039/C3Ra40706C  0.536
2013 Paul S, Pal G, Das AR. Three-component synthesis of a polysubstituted pyrrole core containing heterocyclic scaffolds over magnetically separable nanocrystalline copper ferrite Rsc Advances. 3: 8637-8644. DOI: 10.1039/C3Ra40571K  0.811
2013 Bhattacharyya P, Paul S, Das AR. Facile synthesis of pyridopyrimidine and coumarin fused pyridine libraries over a Lewis base-surfactant-combined catalyst TEOA in aqueous medium Rsc Advances. 3: 3203-3208. DOI: 10.1039/C3Ra23254A  0.797
2013 Pradhan K, Paul S, Das AR. Fe(DS)3, an efficient Lewis acid-surfactant-combined catalyst (LASC) for the one pot synthesis of chromeno[4,3-b]chromene derivatives by assembling the basic building blocks Tetrahedron Letters. 54: 3105-3110. DOI: 10.1016/J.Tetlet.2013.04.001  0.794
2013 Paul S, Das AR. Dual role of the polymer supported catalyst PEG-OSO3H in aqueous reaction medium: synthesis of highly substituted structurally diversified coumarin and uracil fused spirooxindoles Tetrahedron Letters. 54: 1149-1154. DOI: 10.1016/J.Tetlet.2012.12.079  0.82
2013 Ghosh PP, Paul S, Das AR. Light induced synthesis of symmetrical and unsymmetrical dihydropyridines in ethyl lactate–water under tunable conditions Tetrahedron Letters. 54: 138-142. DOI: 10.1016/J.Tetlet.2012.10.106  0.785
2012 Pal G, Bhattacharyya P, Medda A, Das AR. A new strategy for the one pot synthesis of (aryloxyimino)ethylcoumarins promoted by CuCl2 Journal of Chemical Research-S. 36: 5-8. DOI: 10.3184/174751912X13247245983221  0.737
2012 Ghosh PP, Pal G, Paul S, Das AR. Design and synthesis of benzylpyrazolyl coumarin derivatives via a four-component reaction in water: investigation of the weak interactions accumulating in the crystal structure of a signified compound Green Chemistry. 14: 2691. DOI: 10.1039/C2Gc36021G  0.748
2012 Paul S, Das AR. A new application of polymer supported, homogeneous and reusable catalyst PEG–SO3H in the synthesis of coumarin and uracil fused pyrrole derivatives Catalysis Science & Technology. 2: 1130-1135. DOI: 10.1039/C2Cy20117H  0.786
2012 Das AR, Pal G, Bhattacharyya P, Ghosh AK, Mukherjee D, Bandyopadhyay D. Design and synthesis of coumarinyl 1,4-benzodioxanes as potential anti-oxidant Tetrahedron Letters. 53: 7060-7066. DOI: 10.1016/J.Tetlet.2012.10.057  0.468
2012 Pradhan K, Bhattacharyya P, Paul S, Das AR. Synthesis of 3,4-dihydropyridin-2-one derivatives in convergent mode applying bio catalyst vitamin B1 and polymer supported catalyst PEG–SO3H from two different sets of building blocks Tetrahedron Letters. 53: 5840-5844. DOI: 10.1016/J.Tetlet.2012.08.030  0.798
2012 Bhattacharyya P, Pradhan K, Paul S, Das AR. Nano crystalline ZnO catalyzed one pot multicomponent reaction for an easy access of fully decorated 4H-pyran scaffolds and its rearrangement to 2-pyridone nucleus in aqueous media Tetrahedron Letters. 53: 4687-4691. DOI: 10.1016/J.Tetlet.2012.06.086  0.811
2012 Ghosh PP, Das AR. Nano crystalline ZnO: a competent and reusable catalyst for one pot synthesis of novel benzylamino coumarin derivatives in aqueous media Tetrahedron Letters. 53: 3140-3143. DOI: 10.1016/J.Tetlet.2012.04.033  0.595
2012 Paul S, Das AR. An efficient green protocol for the synthesis of coumarin fused highly decorated indenodihydropyridyl and dihydropyridyl derivatives Tetrahedron Letters. 53: 2206-2210. DOI: 10.1016/J.Tetlet.2012.02.077  0.782
2011 Paul S, Bhattacharyya P, Das AR. One-pot synthesis of dihydropyrano[2,3-c]chromenes via a three component coupling of aromatic aldehydes, malononitrile, and 3-hydroxycoumarin catalyzed by nano-structured ZnO in water: a green protocol Tetrahedron Letters. 52: 4636-4641. DOI: 10.1016/J.Tetlet.2011.06.101  0.779
2010 Das AR, Medda A, Singha R. Synthesis of biologically potent new 3-(heteroaryl)aminocoumarin derivatives via Buchwald-Hartwig C-N coupling Tetrahedron Letters. 51: 1099-1102. DOI: 10.1016/J.Tetlet.2009.12.089  0.706
2008 Hwu JR, Chen CH, Hsu CI, Das AR, Li YC, Lin LC. Silicon-induced ene-type reaction in the thermal conversion of enolates to beta-silyl enones with molecular dioxygen. Organic Letters. 10: 1913-6. PMID 18433139 DOI: 10.1021/Ol800007V  0.431
2008 Hwu JR, Singha R, Hong SC, Chang YH, Das AR, Vliegen I, De Clercq E, Neyts J. Synthesis of new benzimidazole-coumarin conjugates as anti-hepatitis C virus agents. Antiviral Research. 77: 157-62. PMID 17977606 DOI: 10.1016/J.Antiviral.2007.09.003  0.334
2005 Hwu JR, Das AR, Yang CW, Huang JJ, Hsu MH. 1,2-Eliminations in a novel reductive coupling of nitroarenes to give azoxy arenes by sodium bis(trimethylsilyl)amide. Organic Letters. 7: 3211-4. PMID 16018623 DOI: 10.1021/Ol050924X  0.477
1996 Ranu BC, Majee A, Das AR. A convenient synthesis of β,γ-unsaturated ketones through zinc-mediated allylation of acid chlorides Tetrahedron Letters. 37: 1109-1112. DOI: 10.1016/0040-4039(95)02317-8  0.72
1995 Ranu BC, Majee A, Das AR. Facile and efficient synthesis of homoallylic alcohols using allyl bromide and commercial zinc dust Tetrahedron Letters. 36: 4885-4888. DOI: 10.1016/0040-4039(95)00877-F  0.707
1994 Ranu BC, Das AR. Two-carbon ring expansion through free cyclobutylcarbinyl radical fragmentation Journal of the Chemical Society-Perkin Transactions 1. 921-922. DOI: 10.1039/P19940000921  0.48
1992 Chakraborty R, Das AR, Ranu BC. Ion Exchange Resin-Mediated Hydrolytic Cleavage of α-Nitroepoxides. Simple One-Pot Synthesis of α-Hydroxyketones Synthetic Communications. 22: 1523-1528. DOI: 10.1080/00397919208021623  0.485
1992 Ranu BC, Das AR. Silica gel-supported zinc borohydride. Part 3. Regioselective reductive cleavage of methylenecycloalkane oxides to the less-substituted alcohols Journal of the Chemical Society-Perkin Transactions 1. 1881-1882. DOI: 10.1039/P19920001881  0.54
1992 Ranu BC, Das AR. Selective reduction of carboxylic acids with zinc borohydride in the presence of trifluoroacetic anhydride Journal of the Chemical Society-Perkin Transactions 1. 1561-1562. DOI: 10.1039/P19920001561  0.529
1992 Ranu BC, Das AR. Highly selective reduction of 2-nitrocycloalkanones to 2-nitrocycloalkanols with zinc borohydride in DME Tetrahedron Letters. 33: 2361-2362. DOI: 10.1016/S0040-4039(00)74211-0  0.541
1991 Ranu BC, Das AR. Silica gel-supported zinc borohydride. 2. Regioselective 1,2-reduction of conjugated ketones and aldehydes to the corresponding allylic alcohols The Journal of Organic Chemistry. 56: 4796-4798. DOI: 10.1021/Jo00015A042  0.547
1990 Sarkar DC, Das AR, Ranu BC. Use of zinc borohydride as an efficient and highly selective reducing agent. Selective reduction of ketones and conjugated aldehydes over conjugated enones The Journal of Organic Chemistry. 55: 5799-5801. DOI: 10.1021/Jo00309A028  0.547
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