Unexpected alkoxyl migration in the reaction of silyl ketene acetals with p-toluenesulfonyl azide
作者:Yong Xu、Shizheng Zhu
DOI:10.1016/s0040-4020(01)00283-6
日期:2001.4
The reaction of p-toluenesulfonylazides with several silyl ketene acetals has been investigated. 1-Trimethylsilyloxy-ethylene reacted with TsN3 to give a good yield of N-p-toluenesulfonyl substituted glycinates exclusively. However, during the reaction of 1-trimethylsilyloxy-propene with TsN3, an unexpected alkoxyl migration occurred to give N-acylsulfonyl amides; other products, N-p-toluenesulfonyl