Oxidation of cyclohexane with molecular oxygen catalyzed by SiO2 supported palladium catalysts

被引：16
|
作者：
Mishra, Gopal S. [1 ]
Sinha, Shishir [2 ]
机构：
[1] Univ Tecn Lisboa, Ctr Quim Estrutural, Inst Super Tecn, P-1049001 Lisbon, Portugal
[2] Indian Inst Technol, Dept Chem Engn, Roorkee 247667, Uttar Pradesh, India
来源：
CATALYSIS LETTERS | 2008年 / 125卷 / 1-2期
关键词：
heterogeneous system; Pd catalysts; cyclohexane; dioxygen; mechanism;
D O I：
10.1007/s10562-008-9535-0
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 di(ethylthio)ethane palladium (A) and di(ethylthio)propane palladium (B) complexes have been immobilized on the surface of silica gel and these catalyst systems are shown to serve as effective supported Pd catalysts for cyclohexane oxidation with O-2 under solvent free condition. The supported catalyst A provides best results (overall ca. 16.2% conversion, with a selectivity of 72 or 24% for cyclohexanol or cyclohexanone, respectively, which are further promoted in the presence of 2-pyrazinecarboxylic acid which acts as a co-catalyst (overall ca. 21.2% conversion).
引用
收藏
页码：139 / 144
页数：6
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