C-glycosides: A stereoselective synthesis of α- and β-C-galactosides with glycosyl dianions
作者:Fred Burkhart、Matthias Hoffmann、Horst Kessler
DOI:10.1016/s0040-4039(98)01676-1
日期:1998.10
α- or β-C-galactosides can be obtained from the configurationally stable anomeric glycosyl dianions which are prepared by transmetallation of a tin compound or by reductive lithiation of a chloride. Different electrophiles react selectively at the anomeric center
α-或β - C-半乳糖苷可从结构稳定的异头糖基二价阴离子获得,所述异头糖基二价阴离子通过锡化合物的金属转移或氯化物的还原锂化制备。不同的亲电试剂在异头中心选择性反应