A catalytic and mechanistic study of the Friedel-Crafts benzoylation of anisole using zeolites in ionic liquids

被引：59

作者：

Hardacre, C

Katdare, SP

Milroy, D

Nancarrow, P

Rooney, DW ^{[1
]}

Thompson, JM

机构：

[1] Queens Univ Belfast, Sch Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

[2] Queens Univ Belfast, Sch Chem, Belfast BT9 5AG, Antrim, North Ireland

[3] Queens Univ Belfast, QUILL Res Ctr, Belfast BT9 5AG, Antrim, North Ireland

来源：

JOURNAL OF CATALYSIS | 2004年 / 227卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

zeolite; ionic liquids; Friedel-Crafts; benzoylation; anisole; continuous flow; ion exchange; deactivation;

D O I：

10.1016/j.jcat.2004.05.034

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 Friedel-Crafts benzoylation of anisole with benzoic anhydride to yield 4-methoxybenzophenone has been carried out in a range of ionic liquids using zeolite catalysts. The rates of reaction were found to be significantly higher using ionic liquids compared with organic solvents. Continuous-flow studies of successful ionic liquid systems indicate that the bulk of the catalysis is due to the formation of an acid via the ion exchange of the cation with the protons of the zeolite. The acid liberated was quantified using both titration experiments and ion-exchange experiments using sodium-exchanged zeolites. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：44 / 52

页数：9

共 47 条

[41] Selective catalytic oxidation of benzyl alcohol and alkylbenzenes in ionic liquids [J].