Phenol methylation over CrPO4 and CrPO4-AlPO4 catalysts

被引：13

作者：

Bautista, FM

Campelo, JM

Garcia, A

Luna, D

Marinas, JM

Romero, AA

Urbano, MR

机构：

[1] Department of Organic Chemistry, Sciences Faculty, Cordoba University, E-14004 Cordoba, Avda. S. Alberto Magno, s/n

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1997年 / 62卷 / 01期

关键词：

chromium orthophosphate (CrPO4); chromium aluminium orthophosphates (CrPO4-AIPO(4)); surface acidity; phenol/methanol and phenol/dimethyl carbonate alkylation; activity; selectivity;

D O I：

10.1007/BF02475712

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 vapor-phase catalytic alkylation of phenol with methanol and dimethyl carbonate on a series of differently prepared CrPO4 (Cr/P=1) and CrPO4-AlPO4 (CrAlP) catalysts, has been studied at different temperatures (473-673 K). The reaction is first order in phenol, giving a mixture of O- and C-alkylated products (C-alkylation taking place preferentially at the ortho-position). Moreover, dimethyl carbonate is a better methylating agent than methanol.

引用

页码：47 / 54

页数：8

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