Selenium catalysed oxidations with aqueous hydrogen peroxide. Part I: epoxidation reactions in homogeneous solution

被引：92

作者：

ten Brink, GJ ^{[1
]}

Fernandes, BCM ^{[1
]}

van Vliet, MCA ^{[1
]}

Arends, IWCE ^{[1
]}

Sheldon, RA ^{[1
]}

机构：

[1] Delft Univ Technol, Organ Chem & Catalysis Lab, NL-2628 BL Delft, Netherlands

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 2001年 / 03期

关键词：

D O I：

10.1039/b008198l

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Several diselenides were synthesised and tested for catalytic activity in epoxidation reactions with aqueous hydrogen peroxide. Bis[3,5-bis(trifluoromethyl)phenyl] diselenide forms the corresponding 3,5-bis(trifluoromethyl)benzene seleninic acid (L. Syper and J. Mlochowski, Tetrahedron, 1987, 43, 207.) in situ, which is a highly reactive and selective catalyst for the epoxidation of olefins in 2,2,2-trifluoroethanol. This is the first selenium compound that effectively (substrate to catalyst molar ratio s/c=200) catalyses the formation of sensitive epoxides in nearly quantitative yields.

引用

页码：224 / 228

页数：5

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