Jacobsen catalyst anchored onto an activated carbon as an enantioselective heterogeneous catalyst for the epoxidation of alkenes

被引：40

作者：

Silva, AR ^{[1
]}

Freire, C ^{[1
]}

de Castro, B ^{[1
]}

机构：

[1] Univ Porto, Fac Ciencias, Dept Quim, REQUIMTE, P-4169007 Oporto, Portugal

来源：

CARBON | 2004年 / 42卷 / 14期

关键词：

activated carbon; chemically modified carbons; catalyst; catalyst support; catalytic properties;

D O I：

10.1016/j.carbon.2004.06.037

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：

Jacobsen catalyst, which anchored onto an activated carbon as an enantioselective catalysts, manganese(III) salen complexes, was analyzed for the epoxidation of alkenes. The anchoring process was monitored by UV-vis spectroscopy. A decrease in the intensity of the electronic spectra of the manganese(III) salen complex was observed. The yield and enantiomeric excesses of the epoxidation were determined by gas chromatography. It was observed that the reaction time of epoxidation was increased with the use of heterogenous catalysts.

引用

页码：3027 / 3030

页数：4

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