A STEREOSELECTIVE REDUCTION OF DIBENZO-18-CROWN-6 ETHER TO DICYCLOHEXYL-18-CROWN-6 ETHER

被引：20

作者：

LANDRE, PD

LEMAIRE, M

RICHARD, D

GALLEZOT, P

机构：

[1] UNIV LYON 1,ESCIL,CATALYSE & SYNTH ORGAN LAB,BAT 308,43 BD DU 11 NOVEMBRE 1918,F-69622 VILLEURBANNE,FRANCE

[2] CNRS,INST RECH CATALYSE,F-69626 VILLEURBANNE,FRANCE

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1993年 / 78卷 / 03期

关键词：

D O I：

10.1016/0304-5102(93)87055-D

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dibenzo-18-crown-6 ether is reduced to dicyclohexano-18-crown-6 ether under very mild conditions (room temperature and atmospheric hydrogen pressure) in the presence of rhodium salt and phase-transfer reagents. Control over the stereoselectivity of the reduction can be achieved through the proper choice of the phase-transfer agent. Moreover, at higher pressure, the stereoselectivity can be increased up to a 95/5 ratio of the syn/anti isomers of the dicyclohexano-18-crown-6 ether.

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页码：257 / 261

页数：5

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