Phosphine-catalyzed [4+ 1] annulation between α, β-unsaturated imines and allylic carbonates: synthesis of 2-pyrrolines

…, R Zhou, H Sun, H Song, Z He

Index: Cai, Lingchao; Zhang, Bo; Wu, Guiping; Song, Haibin; He, Zhengjie Chemical Communications, 2011 , vol. 47, # 3 p. 1045 - 1047

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Citation Number: 66

Abstract

In this report, a phosphine-catalyzed [4+ 1] annulation between α, β-unsaturated imines and allylic carbonates is described. This reaction represents the first realization of catalytic [4+ 1] cyclization of 1, 3-azadienes with in situ formed phosphorus ylides, which provides highly