An Improved Procedure for the Ring Opening of Benzylidene Acetals with N-Bromosuccinimide

An Improved Procedure for the Ring Opening of Benzylidene Acetals with N-Bromosuccinimide
复制标题

N-溴代丁二酰亚胺开环亚苄基缩醛的改进方法

DOI:
--
复制
发表时间:
1990
期刊:
影响因子:
--
通讯作者:
Y. Chapleur
Y. Chapleur
中科院分区:
--
文献类型:
--
作者:
F. Chrétien;M. Khaldi;Y. Chapleur

文献摘要

被引文献

相似文献

本文介绍了用化学计量的碳酸钙代替过量的碳酸钡,用N-溴代丁二酰亚胺使碳水化合物的4,6-O-苄叉缩醛开环的新方法。该方法成功地应用于一些高度官能化的底物,没有副反应。
Abstract A new procedure for the ring opening of 4,6-O-benzylidene acetals of carbohydrates with N-bromosuccinimide using calcium carbonate in stoechiometric amount instead of excess barium carbonate is described. This procedure is successfully applied to some highly functionnalized substrates without side reactions.