Gallium-containing mesoporous silicas as a catalyst for alkylation of benzene and other aromatics by benzyl chloride

被引：20

作者：

Bachari, K

Cherifi, O

机构：

[1] Ctr Rech Sci & Tech Anal Physicochim, CRAPC, Algiers 16004, Algeria

[2] USTHB, Lab Chim Gaz Nat, Fac Chim, Bab Ezzouar 16111, Algeria

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2006年 / 253卷 / 1-2期

关键词：

Friedel-Crafts alkylation; benzyl chloride; gallium; mesoporous silica; diphenylmethane;

D O I：

10.1016/j.molcata.2006.03.040

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 [物理化学]; 081704 [应用化学];

摘要：

The benzylation of benzene and substituted benzenes reaction employing benzyl chloride as the alkylating agent over a series of gallium-containing mesoporous silicas with different Ga contents has been investigated. These materials (Ga-HMS-n) have been characterized by chemical analysis, BET and XRD. The mesoporous gallium-containing materials showed both high activity and high selectivity for benzylation of benzene. The activity of these catalysts for the benzylation of different aromatic compounds is in the following order: benzene > toluene > p-xylene > anisole. Kinetics of the benzene benzylation over these catalysts have also been investigated. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：187 / 191

页数：5

共 30 条

[1]

Benzylation of benzene by benzyl chloride over iron mesoporous molecular sieves materials [J].