Silica Gel-Supported Polyphosphoric Acid (PPA/SiO2): An Efficient and Reusable Heterogeneous Catalyst for Facile Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthenes under Solvent-free Conditions

被引：48
|
作者：
Khojastehnezhad, Amir [1 ]
Davoodnia, Abolghasem [1 ]
Bakavoli, Mehdi [1 ]
Tavakoli-Hoseini, Niloofar [1 ]
Zeinali-Dastmalbaf, Mohsen [1 ]
机构：
[1] Islamic Azad Univ, Fac Sci, Dept Chem, Mashhad Branch, Mashhad, Iran
来源：
CHINESE JOURNAL OF CHEMISTRY | 2011年 / 29卷 / 02期
关键词：
14-Aryl-14H-dibenzo[a; j]xanthenes; PPA/SiO2; heterogeneous catalysis; green chemistry; solvent-free conditions; ONE-POT SYNTHESIS; IONIC LIQUID; SOLID ACIDS; CONDENSATION; DERIVATIVES; GREEN; HCLO4-SIO2;
D O I：
10.1002/cjoc.201190081
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A simple, efficient and green method for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes by a one-pot condensation reaction of beta-naphthol and aryl aldehydes using silica gel-supported polyphosphoric acid (PPA/SiO2), an effective and reusable catalyst, under solvent-free conditions is described. The present methodology offers several advantages, such as a simple procedure with an easy work-up, short reaction times, high yields, and the absence of any volatile and hazardous organic solvents.
引用
收藏
页码：297 / 302
页数：6
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