V. Colburn, B. Iddon, H. Suschitzky
1978
Citations
0
Influential Citations
9
Citations
Journal
Journal of The Chemical Society, Chemical Communications
Abstract
Whereas anils (4) derived from 3-nitrothiophen-2-carbaldehyde undergo reductive cyclisation with triethyl phosphite to give the expected 2-arylthieno-[3,2-c]pyrazoles (5), the isomeric anils (6) and (7), derived from 2-nitrothiophen-3-carbaldehyde, give the 1-arylpyrrole-3-carbonitriles (8) and (9), respectively as the major products.