Studies in Thio‐Claisen Rearrangement: Regioselective Synthesis of Thiopyrano[2,3‐b]pyran‐2‐ones and Thieno[2,3‐b]pyran‐2‐ones

References

• Blechert , S. 1989 . The hetero‐cope rearrangement in organic synthesis . Synthesis , : 71
   Google Scholar
• Ziegler , F. E. 1988 . The thermal, aliphatic claisen rearrangement . Chem. Rev. , 88 : 1423
   Web of Science ®Google Scholar
• Moody , C. 1987 . J. Adv. Heterocycl. Chem. , 42 : 203
   Web of Science ®Google Scholar
• Lutz , R. P. 1984 . Catalysis of the cope and claisen rearrangement . Chem. Rev. , 84 : 205
   Web of Science ®Google Scholar
• Bennett , G. B. 1977 . The Claisen rearrangement in organic synthesis: 1967 to January 1977 . Synthesis , : 589 [CROSSREF]
   Google Scholar
• Majumdar , K. C. , Balasubramanian , K. K. and Thyagarajan , B. S. 1973 . Studies in claisen rearrangement. Part‐XII. Synthesis of benzofuro[3,2‐c][1]‐6a,11a‐dihydro‐11a‐methylbenzopyran derivatives from 1,4‐diaryloxybut‐2‐ynes . J. Heterocyclic Chem. , 10 : 159
   Google Scholar
• Scheurer , H. , Zsindely , J. and Schmid , H. 1973 . Uber thermische, eine amino‐Claisen umlagerung einschliessende reaktionen von N‐propergyl‐naphthylamines . Helv. Kim. Acta. , 56 : 478 [CROSSREF]
   Google Scholar
• Majumdar , K. C. , Ghosh , S. and Ghosh , M. in press . The thio‐Claisen rearrangement 1980–2001 . Tetrahedron Reports ,
   Google Scholar
• Bentley , R. and Zwitkowits , P. M. 1967 . Biosynthesis of tropolones in Penicillium stipitatum. VII. The formation of polyketide lactones and other nontropolone compounds as a result of ethionine inhibition . J. Am. Chem. Soc. , 89 : 676 [PUBMED] [INFOTRIEVE]
   PubMed Web of Science ®Google Scholar
• Bentley , R. and Zwitkowits , P. M. 1967 . Biosynthesis of tropolones in Penicillium stipitatum. VIII. The utilization of polyketide lactones for tropolone formation . J. Am. Chem. Soc. , 89 : 681 [PUBMED] [INFOTRIEVE]
   PubMed Web of Science ®Google Scholar
• Omura , S. , Ohno , H. , Saheki , T. , Masakazu , Y. and Nakagawa , A. 1978 . Elasnin, a new human granulocyte elastase inhibitor produced by a strain of streptomyces . Biochem. Biophys. Res. Commun. , 83 : 704 [PUBMED] [INFOTRIEVE] [CROSSREF]
   PubMedGoogle Scholar
• Ohno , H. , Saheki , T. , Awaya , J. , Nakagawa , A. and Omura , S. 1978 . Isolation and characterization of Elasnin, a new human granulocyte elastase inhibitor produced by a strain of streptomyces . J. Antibiot. , 31 : 1116 [PUBMED] [INFOTRIEVE]
   PubMedGoogle Scholar
• Groutas , W. C. , Stanga , M. A. , Brubaker , M. J. , Huang , T. L. , Moi , M. K. and Carrol , R. T. 1985 . Substituted 2‐pyrones, 2‐pyridones and other congeners of Elasnin as potential agents for the treatment of chronoc obstructive lung diseases . J. Med. Chem. , 28 : 1106 [PUBMED] [INFOTRIEVE]
   Google Scholar
• Spencer , R. W. , Copp , L. J. and Pfister , J. R. 1985 . Inhibition of human leukocyte elastase, procine pancreatic elastase and chymotrypsin by elasnin and other 4‐hydroxy‐2‐pyrones . J. Med. Chem. , 28 : 1828 [PUBMED] [INFOTRIEVE]
   PubMedGoogle Scholar
• Cook , L. , Ternai , B. and Ghosh , P. 1987 . Inhibition of human sputum elastase by substitute 2‐pyrones . J. Med. Chem. , 30 : 1017 [PUBMED] [INFOTRIEVE]
   PubMedGoogle Scholar
• Majumdar , K. C. and Biswas , P. 1998 . Studies in sulfoxide rearrangement: regioselective synthesis of thieno[3,2‐f]quinolin‐7(6H)‐one derivatives . Tetrahedron , 54 : 11603 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. and Biswas , P. 1999 . Synthesis of bioactive heterocycles: one pot regioselective synthesis of pyrano[3,2‐f]‐benzo(b)thiophene derivatives . Tetrahedron , 55 : 1449 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. , Chatterjee , P. and Saha , S. 1998 . Regioselective synthesis of [6c,12b‐cis]‐6c,7,12,13‐tetrahydro‐1H‐chromeno[3 = B4, 4 = B4 : 4,5]pyrano[2,3‐c]chromeno‐1‐ones via [1, 6] Michael addition . Tetrahedron Lett. , 39 : 7147 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. and Das , U. 1998 . Studies in pyrimidine‐annelated heterocycles by tandem cyclisation: regioselective synthesis of [6,6]pyranopyran by internal [1,6] michael addition . J. Org. Chem. , 63 : 9997 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. , Das , U. and Jana , N. K. 1998 . Studies on pyrimidine‐annelated heterocycles: synthesis of pyrrolo[3,2‐d]pyrimidines by amine oxide rearrangement . J. Org. Chem. , 63 : 3550 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. and Ghosh , S. K. 2002 . Studies of bioactive heterocycles: facile thio‐Claisen rearrangement of propargyl thio[1]benzopyran‐2‐ones . Tetrahedron Lett. , 43 : 2115 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. , Ghosh , M. , Jana , M. and Saha , D. 2002 . Facile regioselective synthesis of 2(H)‐thiopyrano[3,2‐c]quinoline‐5(6H)‐ones by thio‐Claisen rearrangement of propargyl thio[1]benzopyran‐2‐ones . Tetrahedron Lett. , 43 : 2111 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. , Jana , N. K. , Bandyopadhyay , A. and Ghosh , S. K. 2001 . Synthesis of pyrimidine annealated heterocycles: thermal rearrangement of 1,3‐dimethyl‐5‐9(prop‐2‐enylthio)‐pyrimidine‐2,4‐diones . Synth. Commun. , 31 : 2979 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. and Ghosh , S. K. 2002 . Studies in sigmatropic rearrangement: regioselective synthesis of thieno[2,3‐b]thiochromen‐4‐one derivatives . Synth. Commun. , 32 : 1271 [CROSSREF]
   Web of Science ®Google Scholar
• Majumdar , K. C. , Kundu , U. K. and Ghosh , S. 2002 . Regioselective synthesis of heterocycles by sigmatropic rearrangement: passage to benzofuro [3,2‐c]‐6a,11a‐dihydro‐3,11a‐dimethylthiopyranopyran‐1‐one . Perkin Trans 1 , : 2139 [CROSSREF]
   Google Scholar
• Morin , L. , Lebaud , J. , Paquer , D. and Chaussin and Barillier , D. 1979 . The thio‐Claisen rearrangement . Phosphorous and Sulfur , 7 : 69
   Web of Science ®Google Scholar