SnCl2/nano SiO2: A green and reusable heterogeneous catalyst for the synthesis of polyfunctionalized 4H-pyrans

被引：48

作者：

Safaei-Ghomi, Javad ^{[1
]}

Teymuri, Raheleh ^{[1
]}

Shahbazi-Alavi, Hossein ^{[1
]}

Ziarati, Abolfazl ^{[1
]}

机构：

[1] Univ Kashan, Fac Chem, Dept Organ Chem, Kashan 51167, Iran

来源：

CHINESE CHEMICAL LETTERS | 2013年 / 24卷 / 10期

关键词：

Nano silica supported tin (II) chloride; Polyfunctionalized; 4H-pyrans; Multicomponent reactions; Heterogeneous catalyst; ONE-POT SYNTHESIS; MULTICOMPONENT REACTIONS; 3-COMPONENT SYNTHESIS; CUI NANOPARTICLES; 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES; IRRADIATION; EFFICIENT; NITRILES; ACID;

D O I：

10.1016/j.cclet.2013.06.021

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A highly efficient and general method for the synthesis of polyfunctionalized 4H-pyrans is established through a one-pot multicomponent cyclocondensation of aromatic aldehydes with CH acids, malononitrile and ethyl acetoacetate using nano silica supported tin (II) chloride as a catalyst. In this method SnCl2/nano SiO2 was used as green and reusable catalyst. Excellent yields, short reaction times, simple workup, and inexpensiveness and commercially availability of the catalyst are the advantages of this method. (C) 2013 Javad Safaei-Ghomi. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：921 / 925

页数：5

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