Biomimetic oxidations using transition metal complexes encapsulated in zeolites

被引：38
|
作者：
Srinivas, D [1 ]
Sivasanker, S [1 ]
机构：
[1] Natl Chem Lab, Catalysis Div, Pune 411008, Maharashtra, India
来源：
CATALYSIS SURVEYS FROM ASIA | 2003年 / 7卷 / 2-3期
关键词：
transition metal complexes; encapsulation in zeolites; zeozymes; selective oxidation; biomimetic oxidation; molecular sieves; zeolites; spectroscopic characterization; EPR;
D O I：
10.1023/A:1025381423820
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：
An account of biomimetic oxidations by metal phthalocyanines, tri- and tetra-aza macrocycles, Schiff bases (salen and saloph), dimeric Cu-acetate and Co-Mn-acetate complexes encapsulated in zeolite-Y and molecular sieves is reported. The selective oxidation reactions investigated include epoxidation of styrene, hydroxylation of phenol, oxidation of p-xylene to terephthalic acid, ethylbenzene to acetophenone and cyclohexane, cyclohexanol and cyclohexanone to adipic acid. In all these reactions, the encapsulated metal complexes exhibit enhanced activity or selectivity compared to the "neat'' complexes. The reasons for the enhanced activity of metal complexes upon encapsulation in zeolites are reported.
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收藏
页码：121 / 132
页数：12
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