Design of ionic liquid sulfonic acid pyridinium hydrogen sulfate as an efficient, eco-friendly, and reusable catalyst for one-pot synthesis of highly functionalized tetrahydropyridines

被引：0
|
作者：
Sedigheh Mohammadi
Mohsen Abbasi
机构：
[1] Islamic Azad University,Department of Chemistry, Lamerd Branch
来源：
Research on Chemical Intermediates | 2015年 / 41卷
关键词：
One-pot; Sulfonic acid pyridinium hydrogen sulfate; Tetrahydropyridines; Solvent-free conditions; Multicomponent reaction;
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学科分类号：
摘要：
Novel ionic liquid sulfonic acid pyridinium hydrogen sulfate ([Pyridine-SO3H]HSO4) is synthesized and characterized by various techniques such as FT-IR, 1H NMR, 13C NMR, TG, DTG, as well as mass spectra. This ionic liquid is used as an efficient, homogeneous, and recyclable catalyst for one-pot synthesis of highly functionalized tetrahydropyridines from the three-component condensation of aromatic aldehydes, ethyl acetoacetate, and substituted anilines under solvent-free conditions. The main advantages of this protocol are the short reaction time, high yields, mild and clean conditions, and several reuse times without noticeably decreasing the catalytic activity.
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页码：8877 / 8890
页数：13
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