Reduction of 2,2,2-trichloro-1-arylethanones by RMgX: mechanistic investigation and the synthesis of substituted α,α-dichloroketones
作者:Ali H. Essa、Reinner I. Lerrick、Floriana Tuna、Ross W. Harrington、William Clegg、Michael J. Hall
DOI:10.1039/c3cc39147g
日期:——
2-Trichloro-1-arylethanones undergo high yielding reductions to the corresponding 2,2-dichloro-1-arylethanones in the presence of RMgX. A single electron transfer mechanism for the reaction is proposed based on trapping experiments. Reaction of the intermediate enolates with a range of electrophiles is described, providing a convenient route to substituted alpha,alpha-dichloro-beta-hydroxyketones and related
在存在RMgX的情况下,2,2,2-三氯-1-芳酮类化合物的收率高,还原成相应的2,2-二氯-1-芳酮类化合物。基于捕获实验,提出了反应的单电子转移机理。描述了中间烯醇化物与一系列亲电试剂的反应,为取代的α,α-二氯-β-羟基酮和相关分子提供了便利的途径。