Alanine-supported protic ionic liquids as efficient catalysts for aldol condensation reactions

被引：12
|
作者：
Cota, Iuliana [1 ]
Medina, Francesc [1 ]
Gonzalez-Olmos, Rafael [2 ]
Iglesias, Miguel [3 ]
机构：
[1] Univ Rovira & Virgili, Dept Engn Quim, Escola Tecn Super Engn Quim, E-43007 Tarragona, Spain
[2] Univ Girona, Inst Environm, LEQUIA, Girona 17071, Catalonia, Spain
[3] Univ Fed Bahia, Escola Politecn, Dept Engn Quim, BR-40210630 Salvador, BA, Brazil
来源：
COMPTES RENDUS CHIMIE | 2014年 / 17卷 / 01期
关键词：
Ionic liquids; Aldol condensation; Catalysis; Supported ionic liquids; Catalyst recycling; TEMPERATURE;
D O I：
10.1016/j.crci.2013.06.004
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of novel protic ionic liquids were immobilized on alanine, a cheap readily available amino acid. These short aliphatic chain ionic liquids have a low cost of preparation, a low toxicity, and need simple synthesis/purification processes. Their catalytic activity was tested for citral-acetone and benzaldehyde-acetone condensations, two reactions with an interest for pharmacological as well as flavor and fragrance industry. Good results were obtained in terms of conversion and selectivity; moreover, the catalysts can be recycled and reused for several consecutive cycles without significant loss of activity. (C) 2013 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：18 / 22
页数：5
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