Dichloromethane Activation. Direct Methylenation of Ketones and Aldehydes with CH<sub>2</sub>Cl<sub>2</sub> Promoted by Mg/TiCl<sub>4</sub>/THF
作者:Tu-Hsin Yan、Chia-Chung Tsai、Ching-Ting Chien、Chia-Ching Cho、Pei-Chen Huang
DOI:10.1021/ol0478887
日期:2004.12.1
[reaction: see text] This Mg-TiCl4-promoted CH2-transfer reaction of CH2Cl2 represents an extremely simple, practical, and efficient methylenation of a variety of ketones and aldehydes, especially in enolizable or sterically hindered ketones such as 2,2-dimethylcyclohexanone, camphor, and fenchone.
[反应:查看文本]这种由Mg-TiCl4促进的CH2Cl2的CH2转移反应代表了各种酮和醛的极其简单,实用和有效的亚甲基化,特别是在可烯醇化或空间受阻的酮(如2,2-二甲基环己酮)中,樟脑和fenchone。