Synthesis of Vinylogous Carbamates by Rhodium(II)-Catalyzed Olefination of Tertiary Formamides with a Silylated Diazoester
作者:Gurdeep S. Nandra、Pui Shan Pang、Michael J. Porter、Jason M. Elliott
DOI:10.1021/ol0510872
日期:2005.8.1
Treatment of tertiary formamides with a silylated diazoester in the presence of a rhodium(II) catalyst leads to the formation of 3-amino-2-silyloxyacrylates in good yield. No olefination is observed if a nonsilylated diazo compound is employed. [reaction: see text]
在铑(II)催化剂存在下用甲硅烷基化的重氮酯处理叔甲酰胺导致高产率地形成3-氨基-2-甲硅烷氧基丙烯酸酯。如果使用非甲硅烷基化的重氮化合物,则未观察到烯化。[反应:看文字]