An eco-safe approach to benzopyranopyrimidines and 4H-chromenes in ionic liquid at room temperature

被引：47

作者：

Gupta, Amit Kumar ^{[1
]}

Kumari, Kumkum ^{[1
]}

Singh, Neetu ^{[1
]}

Raghuvanshi, Dushyant Singh ^{[1
]}

Singh, Krishna Nand ^{[1
]}

机构：

[1] Banaras Hindu Univ, Fac Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India

来源：

TETRAHEDRON LETTERS | 2012年 / 53卷 / 06期

关键词：

Green chemistry; Ionic liquid; Multicomponent reactions; Benzopyrano[2,3-d]pyrimidines; 4H-Chromenes; EFFICIENT ONE-POT; THERMAL-DEGRADATION; PYRAN DERIVATIVES; SOLVENT-FREE; MICROWAVE; WATER; ANTIMYCOBACTERIAL; AGENTS;

D O I：

10.1016/j.tetlet.2011.11.116

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An environmentally benign, ionic liquid promoted multicomponent protocol to benzopyrano(2,3-d)pyrimidines and 4H-chromenes has been developed at room temperature. Results of the reaction depend on the nature of the nucleophile used in the reaction. Secondary amines result in the formation of benzopyrano(2,3-d)pyrimidines, whereas thiols give rise to 4H-chromenes under the same set of reaction conditions. (C) 2011 Elsevier Ltd. All rights reserved.

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页码：650 / 653

页数：4

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