Bronsted acid hydrotrope combined catalyst for environmentally benign synthesis of quinoxalines and pyrido[2,3-b]pyrazines in aqueous medium

被引：55

作者：

Kumbhar, Arjun ^{[1
]}

Kamble, Santosh ^{[1
]}

Barge, Madhuri ^{[1
]}

Rashinkar, Gajanan ^{[1
]}

Salunkhe, Rajashri ^{[1
]}

机构：

[1] Shivaji Univ, Dept Chem, Kolhapur 416004, Maharashtra, India

来源：

TETRAHEDRON LETTERS | 2012年 / 53卷 / 22期

关键词：

Pyrido[2,3-b]pyrazines; Quinoxalines; Bronsted acid hydrotrope combined catalyst (BAHC); Catalyst recycling; Aqueous medium; ORGANIC-REACTIONS; MOLECULAR-IODINE; EFFICIENT; DERIVATIVES; GREEN; CONVENIENT; PROTOCOL;

D O I：

10.1016/j.tetlet.2012.03.097

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new Bronsted acid hydrotrope combined catalyst (BANC) has been developed and applied in acid catalyzed synthesis of pyrido[2,3-b]pyrazines and quinoxalines in an aqueous medium at ambient temperature with excellent yields. Interestingly, the catalyst can be easily recovered after the reactions and reused. Furthermore, BANC catalyst worked well and avoids the use of organic solvents. We have reported herein the synthetic pathway which has less disastrous effect in the atmosphere and human survival. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2756 / 2760

页数：5

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