SiO2-CuCl2: An efficient and recyclable heterogeneous catalyst for one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones

被引：48

作者：

Kour, Gurpreet ^{[1
]}

Gupta, Monika ^{[1
]}

Paul, Satya ^{[1
]}

Rajnikant ^{[2
]}

Gupta, Vivek K. ^{[2
]}

机构：

[1] Univ Jammu, Dept Chem, Jammu 180006, India

[2] Univ Jammu, Postgrad Dept Phys & Elect, Jammu 180006, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2014年 / 392卷

关键词：

Dihydropyrimidinones; Diphenic acid; Silica; Copper(II) chloride; Microwave; Thermal; Acetonitrile; BIGINELLI; DIHYDROPYRIMIDINONES; ACID;

D O I：

10.1016/j.molcata.2014.05.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Silica supported copper(II) chloride is prepared as a green heterogeneous catalyst for the synthesis of biologically and pharmaceutically important 3,4-dihydropyrimidin-2(1H)-ones under microwave and thermal conditions. The catalyst has been characterized by various instrumental techniques such as FTIR, SEM, TEM, TGA and MS. In addition, products are characterized by (HNMR)-H-1, IR,(CNMR)-C-13 and mass spectral data. The reaction of m-nitrobenzaldehyde, ethylacetoacetate and urea produced 5-(ethoxycarbonyl)4-(3-nitrophenyl)-6-methyl-3,4-dihydropyrimidin-2-(1H)-one and its structure has been determined using X-ray crystallography which also showed the inter-molecular H-bonding packing arrangement of molecules. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：260 / 269

页数：10

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