Stereochemistry of Friedel-Crafts Reaction of Benzene with Optically Active 2-Methyloxetane
作者:Masahito Segi、Masaki Takebe、Shinji Masuda、Tadashi Nakajima、Sohei Suga
DOI:10.1246/bcsj.55.167
日期:1982.1
The Friedel-Crafts alkylation of benzene with (+)-2-methyloxetane in the presence of Lewis acids (AlCl3, SnCl4, and TiCl4) gave 3-phenyl-1-butanol with 20–60% inversion of configuration at the reaction center and a mixture of 4-chloro-2-butanol and 3-chloro-1-butanol in opticallyactive form as the by-products. These by products were formed by the attack of the chlorine atom in Lewis acid. The stereochemical
申请人:Merck Patent Gesellschaft mit Beschrankter Haftung
公开号:US05389290A1
公开(公告)日:1995-02-14
Optically active nitrogen-containing heterocycles of the formula I according to claim 1 are suitable as components for ferroelectric liquid crystalline materials.