Influence of radical initiators in gold catalysis:: Evidence supporting trapping of radicals derived from azobis(isobutyronitrile) by gold halides

被引：26

作者：

Alvaro, Mercedes

Aprile, Carmela

Corma, Avelino

Ferrer, Belen

Garcia, Hermenegildo

机构：

[1] Univ Politecn Valencia, CSIC, Dept Quim, Valencia 46022, Spain

[2] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, Valencia 46022, Spain

来源：

JOURNAL OF CATALYSIS | 2007年 / 245卷 / 01期

关键词：

gold catalysis; radical trapping; radical initiators; organogold;

D O I：

10.1016/j.jcat.2006.10.003

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：

Gold halides (AuCl3, HAuCl4, and AuCl) efficiently trap the radicals generated in the room-temperature photolysis of azobis(isobutyronitrile) (AIBN) to give an organogold H[(CH3)(2)CCN](2)AuCl2 compound that has been characterized by spectroscopy. The characteristic features of the organogold are a quaternary carbon at 100 ppm on C-13 NMR and a HR-MS peak with a molecular formula Of C8H13N2AuCl. Catalytic data for cyclohexene aerobic oxidation confirms the beneficial influence of the presence of AlBN on the catalytic activity of Au/CeO2C. (c) 2006 Published by Elsevier Inc.

引用

页码：249 / 252

页数：4

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