Epoxidation with peroxotungstic acid immobilised onto silica-grafted phosphoramides

被引：26

作者：

Gelbard, G

Gauducheau, T

Vidal, E

Parvulescu, VI

Crosman, A

Pop, VM

机构：

[1] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France

[2] Univ Bucharest, Fac Chem, Dept Chem Engn & Catalysis, Bucharest 70346, Romania

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2002年 / 182卷 / 01期

关键词：

epoxidation; hydrogen peroxide; peroxotungstic; phosphoramide; silica-grafted;

D O I：

10.1016/S1381-1169(01)00485-X

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：

Epoxidation of alkenes with hydrogen peroxide was catalysed with peroxotungstic acid complexed to immobilised mono-and bisphosphotriamides. Several silica-based materials such as amorphous silica, K10 montmorillonite and hectorite were used as carriers; these were first aminated with methylaminopropyl-trimethoxysilane and phosphorylated to the required phosphotriamides. Styrene, alpha-methylstyrene, indene, cyclohexene and cyclooctene were used as substrates and repeated uses of catalysts were performed to test the stability of the metal complexes. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：257 / 266

页数：10

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