Zirconium(IV) 4-sulphophenylethyliminobismethylphosphonate as an efficient and reusable catalyst for one-pot synthesis of 3,4-dihydropyrimidones under solvent-free conditions

被引：1

作者：

Yang, Xin-Bin ^{[1
]}

Fu, Xiang-Kai ^{[2
]}

Huang, Yu ^{[3
]}

Zeng, Ren-Quan ^{[1
]}

机构：

[1] Southwest Univ, Dept Chem, Chongqing 402460, Peoples R China

[2] Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China

[3] Ningxia Med Univ, Coll Pharm, Yinchuan 750004, Peoples R China

来源：

CHEMICAL PAPERS | 2011年 / 65卷 / 06期

关键词：

zirconium; phosphonate; acid catalyst; 3,4-dihydropyrimidones; solvent-free; SOLID ACID CATALYSTS; BIGINELLI CONDENSATION; PHOSPHATES; DIHYDROPYRIMIDONES; PHOSPHONATES;

D O I：

10.2478/s11696-011-0091-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Zirconium(IV) 4-sulphophenylethyliminobismethylphosphonate (ZSBEDP) was prepared and characterised by elemental analysis, IR, TG-DSC, and XRD. ZSBEDP was found to be an efficient catalyst for the Biginelli reaction of aromatic aldehyde, ethyl acetoacetate, and urea or thiourea under solvent-free conditions so as to give 3,4-dihydropyrimidones in good to excellent yields. The catalyst can be separated by simple filtration and reused without significant loss of its catalytic activity. (C) 2011 Institute of Chemistry, Slovak Academy of Sciences

引用

页码：829 / 834

页数：6

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