Methyltrioxorhenium/pyrazole - A highly efficient catalyst for the epoxidation of olefins

被引:139
作者
Herrmann, WA [1 ]
Kratzer, RM [1 ]
Ding, H [1 ]
Thiel, WR [1 ]
Glas, H [1 ]
机构
[1] Tech Univ Munchen, Inst Anorgan Chem, D-85747 Garching, Germany
关键词
methyltrioxorhenium; olefin epoxidation; pyrazole; catalysis;
D O I
10.1016/S0022-328X(97)00784-5
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A biphasic system consisting of 35% H2O2 and methyltrioxorhenium(VII)/pyrazole in CH2Cl2 catalyzes the epoxidation of a wide range of olefins in excellent yields. Both the reactivity and selectivity of the new catalytic surpasses all known MTO/Lewis base catalysts. The considerable ligand accelerating effect observed here is attributed to the stability of pyrazole against oxidation. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
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页码:293 / 295
页数:3
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