Solvent-free synthesis of imines via N-alkylation of aromatic amines with alcohols over Co2+-exchanged zeolites

被引：14
|
作者：
Sun, Y. -W. [1 ]
Lu, X. -H. [1 ]
Wei, X. -L. [1 ]
Zhou, D. [1 ]
Xia, Q. -H. [1 ]
机构：
[1] Hubei Univ, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2014年 / 43卷
基金：
中国国家自然科学基金;
关键词：
Aromatic amines; Alcohols; Solvent-free N-allcylation; Imines; Co-zeolite catalysts; EFFICIENT; CATALYSTS; AMINATION; EPOXIDATION;
D O I：
10.1016/j.catcom.2013.10.008
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：
Co2+-exchanged zeolite catalysts were prepared by an ion-exchange route and firstly applied in the N-alkylation of aromatic amines with alcohols to imines. For the N-alkylation of aniline with benzyl alcohol, the aniline conversion of 89.8 mol% with an imine selectivity of 100% was achieved over Co-13X at 433 K under optimal conditions. The results showed that many factors including the Co loading, the support, the temperature, the alkali, could influence the reactions. Investigations carried out by XRD, SEM and recycling studies indicated that the Co-13X catalyst still remained porous structures of 13X zeolite and possessed a stable catalytic activity. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：213 / 217
页数：5
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