Nano-ZrO2 sulfuric acid: a heterogeneous solid acid nano catalyst for Biginelli reaction under solvent free conditions

被引：60
作者：
Kolvari, Eskandar [1 ]
Koukabi, Nadiya [1 ]
Hosseini, Maliheh M. [1 ]
Vahidian, Mitra [1 ]
Ghobadi, Elham [1 ]
机构：
[1] Semnan Univ, Dept Chem, Semnan, Iran
来源：
RSC ADVANCES | 2016年 / 6卷 / 09期
关键词：
ONE-POT SYNTHESIS; SUPPORTED SULFONIC-ACID; MIXED-METAL OXIDES; ORGANIC-SYNTHESIS; MULTICOMPONENT REACTIONS; EFFICIENT SYNTHESIS; FACILE SYNTHESIS; ZIRCONIA; DIHYDROPYRIMIDINONES; ESTERIFICATION;
D O I：
10.1039/c5ra19350h
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nano-ZrO2 sulfuric acid [n-ZrO2-SO3H (n-ZrSA)] has been synthesized from the reaction of nano-ZrO2 with chlorosulfonic acid as sulfonating agent. This catalyst was characterized via FT-IR, XRD, TGA, FESEM, TEM, EDX, BET, BJH, ICP and pH analysis. We show that n-ZrSA catalyzed the Biginelli reaction for the synthesis of 3,4-dihydropyrimidin-2(1H) one derivatives in high yields under solvent-free conditions by the reaction of aldehyde, b-diketoester and urea (or thiourea). The main advantages of the catalyst are its non-toxic nature, high stability and reusability.
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收藏
页码：7419 / 7425
页数：7
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