Reaction of glycal derivatives with alcohols in the presence of N-bromosuccinimide and diphenyldiselenide: preparation of 2-deoxy-2-phenylselenyl glycosides
作者:Abhijit Sau、Anup Kumar Misra
DOI:10.1016/j.carres.2012.08.009
日期:2012.11
Reaction of glycal derivatives with alcohols or glycosyl acceptors in the presence of N-bromosuccinimide (NBS) and diphenyldiselenide resulted in the formation of alkyl 2-deoxy-2-phenylselenyl glycosides or disaccharide derivatives in excellent yield. The reactions are reasonably fast and considerable stereo-selectivity was observed in the preparation of disaccharide derivatives.
在N-溴代琥珀酰亚胺(NBS)和二苯基二硒化物存在下,糖类衍生物与醇或糖基受体的反应导致烷基2-脱氧-2-苯基硒烯基糖苷或二糖衍生物的形成,产率极高。该反应相当快,并且在制备二糖衍生物中观察到相当大的立体选择性。