摘要

The reaction of a series of 1-(3-pyridyl)-2,2-di-substituted ethylenes with 1-benzyl-1,4-dihydronicotinamide (BNAH) in deaerated acetonitrile produces the corresponding 1-(3-pyridyl)-2,2-di-substituted ethanes in contrast to benzylidenemalononitrile (BM) which does not react with BNAH under the same conditions.