Nanosized sulfated zirconia as solid acid catalyst for the synthesis of 2-substituted benzimidazoles

被引：7

作者：

Abdollahi-Alibeik, Mohammad ^{[1
]}

Hajihakimi, Mohammad ^{[2
]}

机构：

[1] Yazd Univ, Dept Chem, Yazd 89195741, Iran

[2] Payame Noor Univ, Dept Chem, Tehran, Iran

来源：

CHEMICAL PAPERS | 2013年 / 67卷 / 05期

关键词：

sulfated zirconia; nanoparticle; solid acid; catalyst; benzimidazole; reusability; EFFICIENT SYNTHESIS; REUSABLE CATALYST; SELECTIVE SYNTHESIS; BENZOXAZOLES; 1,5-BENZODIAZEPINES; NANOPARTICLES; IODINE;

D O I：

10.2478/s11696-013-0311-2

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The condensation reaction of o-phenylenediamine and arylaldehydes was investigated in the presence of nanosized sulfated zirconia (SO (4) (2-) -ZrO2) as the solid acid catalyst. Nanosized SO (4) (2-) -ZrO2 was prepared and characterized by the XRD, FT-IR, and SEM techniques. The results confirm good stabilization of the tetragonal phase of zirconia in the presence of sulfate. Reusability experiments showed partial deactivation of the catalyst after each run; good reusability can be achieved after calcinations of the recovered catalyst before its reuse.

引用

收藏

页码：490 / 496

页数：7

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