77307-66-5Relevant articles and documents
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.
Maffrand, Jean-Pierre
, p. 35 - 38 (2007/10/02)
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.