F. Benachenhou, M. Mesli, M. E. Borai
Sep 1, 1988
Citations
0
Influential Citations
13
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
Thiophene-3,4-dicarbaldehyde 1 reacts in the presence of 2-mercaptoethanol to yield N-aryl-5,6-dihydro-4-oxo-4H-thieno [3,4-c] pyrroles 2 and N-aryl-4-arylimino-5,6-dihydro-4H-thieno [3,4-c] pyrroles 3, while thiophene 2,3-dicarbaldehyde 4 reacts with aromatic amines to give N-aryl-5,6-dihydro-6-oxo-4H-thieno [2,3-c] pyrroles 5 in good yields. Labelling experiments and nmr spectral analysis give evidences for the possible reaction mechanism