Regioselective mono and multiple alkylation of diols and polyols catalyzed by organotin and its applications on the synthesis of value-added carbohydrate intermediates
作者:Hengfu Xu、Bo Ren、Wei Zhao、Xiaoting Xin、Yuchao Lu、Yuxin Pei、Hai Dong、Zhichao Pei
DOI:10.1016/j.tet.2016.04.076
日期:2016.6
A catalytic amount of dibutyltin dichloride was used to develop regioselective alkylation of diols and multiple alkylation of polyols. Alkyl groups, including allyl, alkynyl and long-chain alkyl groups, were successfully introduced to one or two hydroxyl groups of carbohydrate and nonsugar substrates. In most cases, excellent isolation yields were obtained. The alkynylated carbohydrates may be used
催化量的二氯化二丁基锡用于发展二醇的区域选择性烷基化和多元醇的多重烷基化。包括烯丙基,炔基和长链烷基在内的烷基已成功引入到碳水化合物和非糖底物的一个或两个羟基上。在大多数情况下,可获得优异的分离产率。炔化的碳水化合物可用于通过点击反应以高效率合成寡糖模拟物。具有长链烷基的碳水化合物可用作表面活性剂,本研究中的实验进一步证明了这一点。