Direct selective oxidation of benzene to phenol using molecular oxygen in the presence of palladium and heteropolyacids

被引：82

作者：

Passoni, LC

Cruz, AT

Buffon, R

Schuchardt, U

机构：

[1] Instituto de Química, Universidade Estadual de Campinas, P.O. Box 6154, 13083-970 Campinas, SP

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1997年 / 120卷 / 1-3期

基金：

巴西圣保罗研究基金会;

关键词：

palladium; heteropolyacids; benzene oxidation; dioxygen; phenol;

D O I：

10.1016/S1381-1169(96)00440-2

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 use of heteropolyacids as a reoxidant for palladium in the direct oxidation of benzene to phenol with molecular oxygen was studied as a function of the variables involved. It was shown that the oxidation system is very effective even if a molar ratio of HOAc:H2O of 1:2 is used. After 3 h at 130 degrees C the benzene conversion is 15% and the selectivity for phenol is above 70%. The quantity of palladium acetate can be drastically reduced allowing turnover numbers as high as 800.

引用

页码：117 / 123

页数：7

共 13 条

[1] PALLADIUM(II)-CATALYZED AROMATIC SUBSTITUTION [J].