SYNTHESIS OF AXIALLY DISSYMMETRIC CHIRAL AMMONIUM-SALTS BY QUATERNIZATION OF SECONDARY-AMINES WITH (R)-(+)-2,2'-BIS(BROMOMETHYL)-6,6'-DINITROBIPHENYL AND (R)-(+)-2,2'-BIS(BROMOMETHYL)-1,1'-BINAPHTHYL AND AN EXAMINATION OF THEIR ABILITIES AS CHIRAL PHASE-TRANSFER CATALYSTS

被引：0

作者：

SHI, M ^{[1
]}

ITOH, N ^{[1
]}

MASAKI, Y ^{[1
]}

机构：

[1] GIFU PHARMACEUT UNIV,5-6-1 MITAHORA HIGASHI,GIFU 502,JAPAN

来源：

JOURNAL OF CHEMICAL RESEARCH-S | 1995年 / 02期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Chiral quaternary ammonium salts were prepared from the reaction of (R)-(+)-2,2'-bis(bromomethyl)-6,6'-dinitrobiphenyl and (R)-(+)-2,2'-bis(bromomethyl)-1,1'-binaphthyl with some secondary amines and observed to exhibit activity in chiral induction in the epoxidation of chalcone (e.e. = 1.3-7.5%) and the Darzens condensation of benzaldehyde and phenacyl chloride (e.e. = 1.6-2.0%) under phase-transfer conditions.

引用

页码：46 / 47

页数：2

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