ZEOLITE CATALYZED ACYLATION OF HETEROCYCLIC-COMPOUNDS .2. ACYLATION OF BENZOFURAN OVER Y-ZEOLITES - EFFECT OF REACTION CONDITIONS ON THE ACTIVITY AND STABILITY

被引：20
|
作者：
RICHARD, F [1 ]
CARREYRE, H [1 ]
PEROT, G [1 ]
机构：
[1] CNRS,CATALYSE CHIM ORGAN LAB,URA 350,F-86000 POITIERS,FRANCE
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 103卷 / 01期
关键词：
ACYLATION; ZEOLITE; BENZOFURAN; ACETIC ANHYDRIDE; DEACTIVATION;
D O I：
10.1016/1381-1169(95)00117-4
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 acylation of benzofuran by acetic anhydride was carried out in the liquid phase (333 K) in the presence of Y-zeolites (Si/Al = 4.8-86). The most active zeolites were those with a Si/Al ratio approximate to 15. Adsorption experiments at room temperature were carried out and the product distribution in the material ('coke') deposited in the course of the reaction was determined in order to understand the deactivation of the catalyst. Various parameters were found to affect the composition of the deposit especially the reaction procedure which has a drastic influence on the ageing of the catalyst.
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页码：51 / 61
页数：11
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