Stereoselective synthesis of C-glycosides from carboxylic acids: the tandem Tebbe–Claisen approach
作者:H. Yasmin Godage、David J. Chambers、Graham R. Evans、Antony J. Fairbanks
DOI:10.1039/b306675b
日期:——
entirely stereoselective fashion from esters derived from the reaction of carboxylic acids and 3-hydroxy glycals, by way of a tandem reaction sequence of Tebbe methylenation and Claisen rearrangement. Though of wide scope, for example allowing the synthesis of 1-6 linked C-disaccharides, the methodology does not currently allow the synthesis of C-glycosyl alpha-amino acids.
通过Tebbe甲基化和克莱森重排的串联反应序列,可以容易地以完全立体选择性的方式从衍生自羧酸和3-羟基缩醛的反应的酯中以完全立体选择性的方式获得各种β-或α-C-糖苷。尽管范围很广,例如允许合成1-6个连接的C-二糖,但是该方法目前不允许合成C-糖基α-氨基酸。