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Swaroop TR, Roopashree R, Ila H, Rangappa KS. Attempted Simmon–Smith reaction on β-alkylthio-α,β-unsaturated ketones: a regiospecific synthesis of 2,4-disubstituted thiophenes. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.110] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Verma RK, Ila H, Singh MS. Heteroaromatic annulation studies on 2-[bis(methylthio)methylene]-1,3-indanedione: efficient routes to indenofused heterocycles. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.07.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Singh PP, Yadav AK, Ila H, Junjappa H. Novel Route to 2,3-Substituted Benzo[b]thiophenes via Intramolecular Radical Cyclization. J Org Chem 2009; 74:5496-501. [DOI: 10.1021/jo900615p] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Prabal P. Singh
- Department of Chemistry, Indian Institute of Technology, Kanpur-208016, India
| | - A. K. Yadav
- Department of Chemistry, Indian Institute of Technology, Kanpur-208016, India
| | - H. Ila
- Department of Chemistry, Indian Institute of Technology, Kanpur-208016, India
| | - H. Junjappa
- Department of Chemistry, Indian Institute of Technology, Kanpur-208016, India
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Kumar S, Ila H, Junjappa H. Heteroaromatic annulation studies on 10,11-dihydro-11-[bis(methylthio)methylene]dibenzoxepin-10-one: a facile access to novel dibenzoxepino[4,5]-fused heterocycles. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.045] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Panda K, Venkatesh C, Ila H, Junjappa H. Efficient Routes to Acenaphthylene-Fused Polycyclic Arenes/Heteroarenes and Heterocyclic Fluoranthene Analogues. European J Org Chem 2005. [DOI: 10.1002/ejoc.200400735] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mahata PK, Syam Kumar U, Sriram V, Ila H, Junjappa H. 1-Bis(methoxy)-4-bis(methylthio)-3-buten-2-one: useful three carbon synthon for synthesis of five and six membered heterocycles with masked (or unmasked) aldehyde functionality. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00332-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Furukawa I, Fujisawa H, Abe T, Ohta T. Mild Synthesis of α-Oxoketene O.N-Acetals from β-Oxothioxo Esters and Amines. SYNTHETIC COMMUN 1999. [DOI: 10.1080/00397919908085808] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Furukawa I, Abe T, Fujisawa H, Ohta T. Novel synthesis of N-alkyl-3,4-disubstituted pyrrolidine-2,5-diones: Condensation of α-oxoketene O,N-acetals and maleic anhydride. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)10227-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Reddy KR, Rao MVB, Ila H, Junjappa H. Direct Synthesis of 2-(Cycloalkylamino)-3,4-Substituted Thiophenes via Selective Deprotonation-Cyclization of Aroyl Ketene N,S-Acetals. SYNTHETIC COMMUN 1996. [DOI: 10.1080/00397919608004653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Steel PJ. Aromatic Biheterocycles: Syntheses, Structures, and Properties. ADVANCES IN HETEROCYCLIC CHEMISTRY 1996. [DOI: 10.1016/s0065-2725(08)60070-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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12
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Mehta BK, Ila H, Junjappa H. Highly chemoselective and stereoselective conjugate addition of benzyl copper reagents to α-oxoketene dithioacetals. Tetrahedron Lett 1995. [DOI: 10.1016/0040-4039(95)00158-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Reaction of 2,2-difluorovinyl ketones with heteroatom nucleophiles: A general one-pot synthesis of α-oxoketene acetals. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)85658-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Five-Membered Ring Systems: Thiophenes & Se & Te Analogs. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/s0959-6380(13)70010-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Five-Membered Ring Systems: Thiophenes & Se & Te Analogs. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/b978-0-08-042074-5.50010-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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