New polymer-supported phosphonate reagents for the synthesis of Z-α,β-unsaturated esters
作者:Kaori Ando、Yusaku Suzuki
DOI:10.1016/j.tetlet.2010.02.113
日期:2010.4
Newpolymer-supported phosphonate reagents have been prepared and evaluated for the synthesis of Z-α,β-unsaturated esters. High Z-selectivity was obtained using the reagent having two o-t-BuC6H4 groups.
POLYMERIZABLE COMPOUND AND OPTICALLY ANISOTROPIC BODY
申请人:DIC Corporation
公开号:US20170362508A1
公开(公告)日:2017-12-21
A problem of the present invention is to provide a polymerizable compound and a polymerizable composition which cause little decrease in retardation and discoloration when a film-shaped polymer produced by polymerization is irradiated with ultraviolet/visible light for a long time at high temperature. A further problem is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body using the polymer. As a result, a compound useful as a component of a polymerizable composition was obtained. An optically anisotropic body using a polymerizable liquid crystal composition containing the compound of the present invention is useful for application to an optical film and the like.
US3940407A
申请人:——
公开号:US3940407A
公开(公告)日:1976-02-24
Rapid Generation of Complex Molecular Architectures by a Catalytic Enantioselective Dearomatization Strategy
Abstract A catalyticenantioselectivedearomatization strategy can be used to convert readily assembled phenols into complex polycyclic architectures. By combining oxidative dearomatization of phenols bearing a pendent nucleophile with enantioselective secondary amine catalysis, high enantiomeric excesses were obtained for the natural product-like products. A catalyticenantioselectivedearomatization strategy