Application of sulfuric acid modified nano kaolin as a heterogeneous catalyst for the efficient synthesis of quinoxalines and benzothiazines

被引:0
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作者
Karimian, Azam [1 ]
Norouzi, Mahdi [2 ]
Fargi, Zahra Nasri [1 ]
机构
[1] Univ Gonabad, Fac Sci, Dept Chem, Gonabad 9691957678, Iran
[2] Maleke Ashtar Univ Technol, Chem & Chem Engn, Tehran, Iran
关键词
Heterogeneous catalyst; kaolin-OSO3H; natural catalyst; quinoxaline; benzothiazine; SULFONIC-ACID; CRYSTAL-STRUCTURE; SOLID ACID; DERIVATIVES; SILICA; NANOPARTICLES; FACILE; GREEN;
D O I
暂无
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Kaolin-OSO3H efficiently catalyzes the condensation of 2-aminobenzenethiol or benzene-1,2-diamine and 2-bromo-1-aryl-ethanones to yield quinoxaline and benzothiazine derivatives in good yields. The sulfuric acid modified nano kaolin was synthesized with a simple and low-cost method. The present method also has the advantages of good to excellent yields, short reaction times, operational simplicity, and a natural and green catalyst.
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页码:907 / 915
页数:9
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