Reaction of Lithium Trimethylsilyldiazomethanide with Ketenimines Bearing Electron-Withdrawing Groups
作者:Toyohiko Aoyama、Takao Nakano、Kiyotaka Marumo、Yuka Uno、Takayuki Shioiri
DOI:10.1055/s-1991-28411
日期:——
Ketenimines bearing electron-withdrawing groups (X in 1) at the C2-position react with lithium trimethylsilyldiazomethanide [diazo(lithio) trimethylsilylmethane] to give 4-amino-3-trimethylsilylpyrazoles 4 or 5 mainly; in some cases 4-trimethylsilyl-1,2,3-triazole derivatives 3 were formed as the major products.
携带吸电子基团(1 中的 X)的 Ketenimines 与锂三甲基硅基重氮甲烷化物 [重氮(锂)三甲基硅烷] 反应,主要生成 4-氨基-3-三甲基硅基吡唑 4 或 5;在某些情况下,4-三甲基硅基-1,2,3-三唑衍生物 3 作为主要产物形成。