Transition Metal-Free α-Csp<sup>3</sup>-H Methylenation of Ketones to Form C═C Bond Using Dimethyl Sulfoxide as Carbon Source
作者:Yu-Feng Liu、Peng-Yi Ji、Jing-Wen Xu、Yu-Qun Hu、Qiang Liu、Wei-Ping Luo、Can-Cheng Guo
DOI:10.1021/acs.joc.7b00619
日期:2017.7.21
metal-free reaction condition. Various aryl ketone derivatives react readily with DMSO, producing the α,β-unsaturated carbonyl compounds in yields of 42 to 90%. This method features a transition metal-free reaction condition, wide substrate scope and using DMSO as novel one-carbon source to form C═C bond, thus providing an efficient and expeditious approach to an important class of α,β-unsaturated carbonyl
直接α-CSP 3 -H arylketones使用二甲亚砜作为单碳源过渡不含金属的反应条件下实现的,以形成C = C键的亚甲基化。各种芳基酮衍生物容易与DMSO反应,生成α,β-不饱和羰基化合物,产率为42%至90%。该方法具有无过渡金属的反应条件,较宽的底物范围以及使用DMSO作为新型一碳源形成C═C键的特点,从而为一种重要的α,β-不饱和羰基化合物提供了有效而快捷的方法。基于初步实验,揭示了这种转化的合理机制。