Bronsted-Acidic Imidazolium Ionic Liquid [bmim(SO3H)][OTf]: A Mild Catalyst for Highly Efficient Synthesis of Coumarins

被引：4

作者：

Haldorai, Yuvaraj ^{[1
]}

Kalkhambkar, Rajesh G. ^{[2
]}

Shim, Jae-Jin ^{[1
]}

机构：

[1] Yeungnam Univ, Sch Chem Engn, Gyongsan 712749, Gyeongbuk, South Korea

[2] Karnatak Univ, Karnatak Sci Coll, Dept Chem, Dharwad 580001, Karnataka, India

来源：

ASIAN JOURNAL OF CHEMISTRY | 2013年 / 25卷 / 16期

关键词：

Coumarins; Bronsted-acidic imidazolium ionic liquid; Pechmann condensation; ONE-POT SYNTHESIS; PECHMANN CONDENSATION; AROMATIC-COMPOUNDS; REUSABLE CATALYST; REAGENT; GREEN; OLIGOMERIZATION; BENZYLATION; PROTOCOL; SYSTEM;

D O I：

10.14233/ajchem.2013.15772

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The use of Bronsted-acidic imidazolium ionic liquid [bmim(SO3H)][OTf] as a catalyst for the high yielding synthesis of a wide variety of coumarins under mild conditions via Pechmann condensation has been demonstrated. This method is simple and has benefits from the easy way to isolate coumarins in good yields. In comparison with the classical Pechmann condensation, this new method consistently has the advantage of high yields and good purity.

引用

页码：9379 / 9383

页数：5

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