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Communication | Regular issue | Vol 16, No. 1, 1981, pp.35-37
Published online, 1st January, 1970
DOI: 10.3987/R-1981-01-0035
1,3-Dipolar Cycloaddition Reactions of Munchnone and Sydnone Derivatives Obtained from 4,5,6,7-Tetrahydrothieno[3,2-c]pyridine-4 and -6-carboxylic Acids

Jean-Pierre Maffrand*

*Department Recherche et Developpement, Linge Hèmobiologie, Parcor, 195, route d’Espagne 31024 Toulouse Cedex, France


The 1,3-dipolar cycloaddition of dimethyl acetylenedicarboxylate with mesoionic munchnones and sydnones derived from 4,5,6,7-tetrahydrothieno(3,2-c)pyridine-4 and -6 carboxylic acids afforded respectively new ring-fused pyrroles and pyrazoles.