Preparation, Characterization and First Application of Alumina Supported Polyphosphoric Acid (PPA/Al2O3) as a Reusable Catalyst for the Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthenes

被引：12

作者：

Norouzi, Haniyeh ^{[1
]}

Davoodnia, Abolghasem ^{[1
]}

Bakavoli, Mehdi ^{[1
]}

Zeinali-Dastmalbaf, Mohsen ^{[1
]}

Tavakoli-Hoseini, Niloofar ^{[1
]}

Ebrahimi, Mahmoud ^{[1
]}

机构：

[1] Islamic Azad Univ, Mashhad Branch, Dept Chem, Mashhad, Iran

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2011年 / 32卷 / 07期

关键词：

Alumina supported polyphosphoric acid; 14-Aryl-14H-dibenzo[a; j]xanthenes; Heterogeneous catalysis; Solvent-free conditions; ONE-POT SYNTHESIS; SOLID ACID; IONIC LIQUID; EFFICIENT; DERIVATIVES; GEL; CONDENSATION; IMIDAZOLES; GREEN;

D O I：

10.5012/bkcs.2011.32.7.2311

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Alumina supported polyphosphoric acid (PPA/Al2O3) was successfully prepared by impregnation of alumina support by polyphosphoric acid and characterized using FT-IR spectroscopy, the N-2 adsorption/desorption analysis (BET), thermal analysis (TG/DTG), and X-ray diffraction (XRD) techniques. The catalytic behavior of this new solid acid supported heterogeneous catalyst was checked in the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes by cyclocondensation reaction of beta-naphthol and aryl aldehydes under solvent-free conditions. The results showed that the novel catalyst has high activity and the desired products were obtained in very short reaction times with high yields. Moreover, the catalyst can be easily recovered by filtration and reused at least three times with only slight reduction in its catalytic activity.

引用

页码：2311 / 2315

页数：5

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