A new synthesis of pyrrolidines via imino-aldol reaction of (2-trimethylsilylmethyl)cyclopropyl ketones with imines
作者:Veejendra K. Yadav、Archana Gupta
DOI:10.1016/j.tetlet.2008.03.117
日期:2008.5
A new synthesis of 2,3,5-trisubstituted pyrrolidines from the imino-aldols formed from Lewis acid-mediated reactions of (2-trimethylsilylmethyl)cyclopropyl ketones with benzylimines is described. The ring closure of the imino-aldols formed from the benzylimines of 2-chloro-, 2-fluoro-, and 2-trifluoromethylbenzaldehydes proceeds with predominantly 2,5-anti selectivity to generate the corresponding
描述了由路易斯酸介导的(2-三甲基甲硅烷基甲基)环丙基酮与苄基亚胺形成的亚氨基-羟醛新合成的2,3,5-三取代的吡咯烷。由2-氯-,2-氟-和2-三氟甲基苯甲醛的苄基亚胺形成的亚氨基-羟醛的闭环主要以2,5-抗选择性进行,以中等产率产生相应的吡咯烷。