Double decarboxylative route to 3-substituted pyrrolidines: Reaction of monoalkyl malonates and related carboxylic acids with sarcosine and formaldehyde
作者:Evgeny M. Buev、Anastasia A. Smorodina、Vladimir S. Moshkin、Vyacheslav Y. Sosnovskikh
DOI:10.1016/j.tetlet.2020.151727
日期:2020.4
Three-component reactions of monoalkyl malonates, cyanoacetic acids or 2-ketocarboxylic acids, N-methylglycine, and formaldehyde were developed to rapidly access 3-substituted pyrrolidines in 17–97% yield. These reactions represent a double decarboxylative domino-sequence promoted by pyrrolidine and involve N-methylazomethine ylide as the reactive intermediate. 2020 Elsevier Ltd. All rights reserved
开发了丙二酸单烷基酯,氰基乙酸或2-酮羧酸,N-甲基甘氨酸和甲醛的三组分反应,以17-97%的产率快速获得3-取代的吡咯烷。这些反应代表由吡咯烷促进的双脱羧多米诺序列,并且涉及N-甲基偶氮甲亚胺叶立德作为反应性中间体。2020 Elsevier Ltd.保留所有权利。