Coumarin syntheses via Pechmann condensation in Lewis acidic chloroaluminate ionic liquid

被引：259

作者：

Potdar, MK ^{[1
]}

Mohile, SS ^{[1
]}

Salunkhe, MM ^{[1
]}

机构：

[1] Inst Sci, Dept Chem, Mumbai 400032, India

来源：

TETRAHEDRON LETTERS | 2001年 / 42卷 / 52期

关键词：

D O I：

10.1016/S0040-4039(01)02041-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

1-Butyl-3-methylimidazolium chloroaluminate, [bmim]Cl . 2AlCl(3) ionic liquid is used as an alternative to conventional acid catalysts in the Pechmann condensation of phenols with ethyl acetoacetate leading to the formation of coumarin derivatives. The reaction time is reduced drastically even at ambient conditions. The ionic liquid plays the dual role of solvent and Lewis acid catalyst providing a quick and efficient route to the syntheses of cournarins. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：9285 / 9287

页数：3

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