Expeditious synthesis of C-glycosyl conjugated dienes and aldehydes from sugar lactones
作者:Wen-Bin Yang、Chuan-Fa Chang、Shwu-Huey Wang、Chin-Fen Teo、Chun-Hung Lin
DOI:10.1016/s0040-4039(01)00814-0
日期:2001.7
Several C-glycosyl conjugated dienes were prepared in two steps from protected sugar lactones via addition of allylmagnesium chloride and the subsequent dehydration. A sequence of allylic addition, ozonolysis and dehydration led to the corresponding glycosyl conjugated aldehydes. These conjugated functionalities can be used as diagnostic chromophores for sugar synthesis and purification. The synthetic
通过添加烯丙基氯化镁并随后进行脱水,由受保护的糖内酯分两步制备几种C-糖基共轭二烯。一系列烯丙基加成,臭氧分解和脱水导致相应的糖基缀合的醛。这些共轭的功能可以用作糖合成和纯化的诊断生色团。还进行了糖基二烯的合成研究。糖二烯的氢硼化取决于后处理条件而导致均一醇或螺缩醛。