Cosolvent-Promoted O-Benzylation with Silver(I) Oxide: Synthesis of 1′-Benzylated Sucrose Derivatives, Mechanistic Studies, and Scope Investigation
作者:Lei Wang、Yasuyuki Hashidoko、Makoto Hashimoto
DOI:10.1021/acs.joc.6b00144
日期:2016.6.3
simple, mild, and highly effective, and numerous 1′-benzylated sucrose derivatives were prepared including a photoreactive (trifluoromethyl)phenyldiazirine-based sucrose. The mechanisms of benzylation with primary and secondary benzyl bromides were also elaborated. Furthermore, the application scope with alcohols, glucose, and ribose derivatives was investigated.
开发了一种助溶剂与Ag 2 O促进的O-苄基化策略。由CH的共溶剂2氯2和Ñ己烷,不仅可以提高碳水化合物反应的溶解性,但也增加了苄基化效率。在开发的方法中大大抑制了副产物的形成。该方法简单,温和且高效,并且制备了包括基于光反应性(三氟甲基)苯基二叠氮基的蔗糖在内的多种1'-苄基蔗糖衍生物。还详细说明了伯和仲苄基溴的苄基化机理。此外,研究了醇,葡萄糖和核糖衍生物的应用范围。