New highly nucleophilic and practically accessible chlorocarbenoids for carbonyl olefination.
[reaction: see text] Direct oxidative addition of CHCl3 to the Mg-TiCl4 bimetallic species resulted in the generation of a highly nucleophilic and practically convenient chloromethylenetitanium complex, which efficiently effected condensation even with enolizable or inert carbonyl compounds, such as sterically congested ketones, to provide vinyl chloride compounds.
Tsai
Chia-Chung
CC
Department of Chemistry, National Chung-Hsing University, Taichung 400, Taiwan, Republic of China.
Chien
Ching-Ting
CT
Chang
Yu-Cheng
YC
Lin
Huan-Chang
HC
Yan
Tu-Hsin
TH