Zirconia Sulfuric Acid: An Efficient Heterogeneous Catalyst for the One-Pot Synthesis of 3,4-Dihydropyrimidinones Under Solvent-Free Conditions

被引:41
|
作者
Hosseini, Maliheh M. [1 ]
Kolvari, Eskandar [1 ]
Koukabi, Nadiya [1 ]
Ziyaei, Maryam [1 ]
Zolfigol, Mohammad Ali [2 ]
机构
[1] Semnan Univ, Dept Chem, Semnan, Iran
[2] Bu Ali Sina Univ, Fac Chem, Hamadan, Iran
关键词
Zirconia sulfuric acid; Solid acid catalyst; Biginelli; 3,4-Dihydropyrimidinones; Recyclability; SURFACTANT-COMBINED CATALYST; BIGINELLI REACTION; SULFONIC-ACID; NATURAL SUPPORT; DIHYDROPYRIMIDINONES; DIHYDROPYRIDINES; IMMOBILIZATION; ESTERIFICATION; CONDENSATION; DERIVATIVES;
D O I
10.1007/s10562-016-1723-8
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
In this article, zirconia sulfuric acid (ZrSA) has been synthesized from the reaction of ZrO2 with chlorosulfonic acid. It was characterized by (FT-IR, XRD, TGA, SEM, EDS, BET, BJH, ICP and pH analysis). This catalyst was employed for the synthesis of 3,4-dihydropyrimidinones via cyclocondensation of beta-ketoester, aromatic aldehydes and urea/thiourea under solvent-free conditions. Main advantages of the catalyst were non toxic nature, high stability and reusability. .
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页码:1040 / 1049
页数:10
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