作者:Yuanyuan Jing、Constantin G. Daniliuc、Armido Studer
DOI:10.1021/ol5024568
日期:2014.9.19
Direct conversion of primary and secondary alcohols into the corresponding α-chloro aldehydes and α-chloro ketones using trichloroisocyanuric acid, serving both as stoichiometric oxidant and α-halogenating reagent, is reported. For primary alcohols, TEMPO has to be added as an oxidation catalyst, and for the transformation of secondary alcohols (TEMPO-free protocol), MeOH as an additive is essential
据报道,使用同时用作
化学计量氧化剂和α-卤代试剂的
三氯异氰尿酸将伯醇和仲醇直接转化为相应的α-
氯醛和α-
氯酮。对于伯醇,必须添加
TEMPO作为氧化催化剂,而对于仲醇的转化(无
TEMPO方案),MeOH作为添加剂对于促进中间酮的
氯化必不可少。