Studies of the use of elemento-organic compounds of the fifteenth and sixteenth groups in organic synthesis LXXI. Reaction of α-halogeno carboxylic derivatives with carbonyl compounds promoted by tributylstibine
作者:Yao-Zeng Huang、Chen Chen、Yanchang Shen
DOI:10.1016/0022-328x(89)87318-8
日期:1989.4
α,β-Unsaturated esters and amides were conveniently obtained from the trialkylstibine-promoted reaction of α-halogenocarboxylic derivatives with carbonylcompounds. In this reaction, a quaternary stibonium salt is an active intermediate that can be trapped and can undergo further reaction with the substrate.