Facile heterogenisation of molecular Ti(OSiPh3)4 to form a highly active epoxidation catalyst

被引：16

作者：

Attfield, MP ^{[1
]}

Sankar, G ^{[1
]}

Thomas, JM ^{[1
]}

机构：

[1] UCL Royal Inst Great Britain, Davy Faraday Res Lab, London, England

来源：

CATALYSIS LETTERS | 2000年 / 70卷 / 3-4期

关键词：

epoxidation catalyst; titanium-grafted mesoporous MCM-41; X-ray absorption spectroscopy;

D O I：

10.1023/A:1018893402889

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：

The simple grafting procedure of Ti(OSiPh3)(4) onto the internal surface of MCM-41 to produce an epoxidation catalyst of high activity and selectivity is described. The presence of the phenyl groups on each titanium centre increases the longevity of their catalytic activity towards attack from atmospheric moisture. The conversion of the catalytically inactive titanium centre of the precursor compound to an active centre is followed using XANES.

引用

页码：155 / 158

页数：4

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