Synthesis of diphenylmethane from benzene and paraformaldehyde catalyzed by acidic ionic liquids

被引：9
|
作者：
Cui, Shuhan [1 ]
Lu, Bin [1 ]
Xiao, Xue [1 ]
Han, Yuanyuan [1 ]
Cai, Qinghai [1 ]
机构：
[1] Harbin Norm Univ, Dept Chem, Harbin 150080, Peoples R China
来源：
CATALYSIS LETTERS | 2007年 / 119卷 / 3-4期
关键词：
diphenylmethane; benzene; paraformaldehyde; ionic liquid;
D O I：
10.1007/s10562-007-9231-5
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：
Condensations of benzene or toluene, xylene and paraformaldehyde to diphenylmethane (DPM) or its derivatives were performed using acidic ionic liquids Et3NHCl-AlCl3, Et3NHCl-FeCl3, Et3NHCl-ZnCl2, Et3NHCl-CuCl2, Et3NHCl-CuCl, Et3NHCl-SnCl2 as catalysts. The catalytic activity of Et3NHCl-AlCl3 proved to be superior to that of other catalysts for the condensation of benzene and paraformaldehyde, giving 92.4% conversion of HCHO and 76.1% selectivity to diphenylmethane at 80 degrees C and atmospheric pressure. The effect of various reaction conditions on the reaction and reaction kinetics of DPM synthesis were explored.
引用
收藏
页码：277 / 282
页数：6
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