On the mechanism of the synthesis of aryl cyclopropanes from γ-benzenesulfonyloxyalkyl seleno and tin derivatives and n-butyllithium.
摘要:
Gamma-Benzenesulfonyloxyalkyl selenides react with n-butyllithium and stereospecifically lead to aryl cyclopropanes with inversion of configuration at each of the reactive sites which is compatible with the "W mechanism."
On the synthesis of aryl cyclopropanes from γ-benzenesulfonylalkyl tin derivatives and n-butyllithium.
作者:Alain Krief、M. Hobe
DOI:10.1016/s0040-4039(00)79033-2
日期:1992.10
Gamma-Benzenesulfonyloxyalkyl tin derivatives readily available from gamma-hydroxyalkyl selenides, n-butyllithium and trialkyl tin chlorides react with n-butyllithium and stereospecifically lead to aryl cyclopropanes. The transformation is quite general and allows the synthesis of alpha,beta-di- and trisubstituted ones.