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

被引：58

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.

引用

页码：7419 / 7425

页数：7

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