A novel route to the 5,6-dihydro-4-H-thieno[3,2-b]pyrrol-5-one ring system involving an intermediate substituted-thiophene synthesis
作者:Shuanghua Hu、Yazhong Huang、Michael A. Poss、Robert G. Gentles
DOI:10.1002/jhet.5570420427
日期:2005.5
A novel route to electron-deficient thienopyrrolones is disclosed. The target heterocycles are concisely constructed by condensation of activated α- or β-halo-substituted acrylonitriles, or ortho-substituted halo, cyano heterocycles with mercaptopyruvate, followed by reduction and subsequent lactamization.
公开了一种缺乏电子的噻吩并吡咯烷酮的新途径。通过使活化的α-或β-卤代取代的丙烯腈或邻位取代的卤素,氰基杂环与巯基丙酮酸酯缩合,然后还原并随后进行内酰胺化,简明地构建了目标杂环。