Dimethyltin Dichloride Catalyzed Regioselective Alkylation of<i>cis</i>-1,2-Diols at Room Temperature
作者:Varma Saikam、Saidulu Dara、Mahipal Yadav、Parvinder Pal Singh、Ram A. Vishwakarma
DOI:10.1021/acs.joc.5b01898
日期:2015.12.18
mild and general method for the regioselective installation of benzyl, allyl, para-methoxybenzyl and naphthyl groups on cis-1,2-diols. The optimized method operates at room temperature using dimethyltin dichloride as catalyst and silver oxide as an additive. The present method works well with both sugars (such as mono- and disaccharides) and nonsugars (such as inositols, propan-1,2-diol, 1,2-cycloalkanediols
在这里,我们已经开发出一种温和的通用方法,用于在顺式-1,2-二醇上区域选择性地安装苄基,烯丙基,对甲氧基苄基和萘基。该优化方法在室温下使用二氯化二甲基锡作为催化剂,氧化银作为添加剂进行操作。本方法对于糖类(例如单糖和二糖)和非糖类(例如肌醇,1,2-丙二醇,1,2-环烷二醇和脱水赤藓糖醇)均适用,并且还提供了相对更好的官能团相容性。