CATALYTIC BEHAVIOR OF SILICA-SUPPORTED POLYSILAZANE PLATINUM COMPLEX IN THE HYDROGENATION OF XYLENES

被引：7

作者：

CHEN, CW

YU, H

HUANG, MY

JIANG, YY

机构：

[1] Institute of Chemistry, Academia Sinica, Beijing

来源：

REACTIVE POLYMERS | 1995年 / 24卷 / 03期

关键词：

HYDROGENATION; STEREOSELECTIVITY; XYLENE; PLATINUM COMPLEX;

D O I：

10.1016/0923-1137(94)00091-I

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effects of various reaction parameters on the catalytic activity and stereoselectivity in the hydrogenation of the isomeric xylenes over a silica-supported polysilazane-platinum complex (Si-N-Pt) have been studied. The ratio of cis and h-ans dimethylcyclohexane is a function of the structure of the substrate, temperature and catalyst concentration etc. cis-Dimethylcyclohexane is the more favored product for each of the three xylene isomers. The cis/trans ratio drops in the following order: o-xylene > m-xylene > p-xylene. The proportion of the cis isomer decreases with elevating temperature or decreasing substrate/catalyst mole ratio.

引用

页码：255 / 260

页数：6

共 10 条

[1] HYDROGENATION OF XYLENES OVER SUPPORTED PT CATALYSTS - INFLUENCE OF DIFFERENT VARIABLES ON THEIR CATALYTIC ACTIVITY [J].