New applications of phosphoric acid supported on alumina (H3PO4-Al2O3) as a reusable heterogeneous catalyst for preparation of 2,3-dihydroquinazoline-4(1H)-ones, 2H-indazolo[2,1-b]phthalazinetriones, and benzo[4,5]imidazo[1,2-a]pyrimidines

被引：31

作者：

Shaterian, Hamid Reza ^{[1
]}

Fahimi, Nafiseh ^{[1
]}

Azizi, Kobra ^{[1
]}

机构：

[1] Univ Sistan & Baluchestan, Dept Chem, Fac Sci, Zahedan, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2014年 / 40卷 / 05期

关键词：

2,3-Dihydroquinazoline-4(1H)-ones; 2H-indazolo [2,1-b]phthalazinetriones; Benzo[4,5]imidazo[1,2-a]pyrimidine; H3PO4-Al2O3; CALCIUM-CHANNEL BLOCKERS; ONE-POT; MULTICOMPONENT REACTIONS; ANTICONVULSANT ACTIVITY; 3-COMPONENT SYNTHESIS; EFFICIENT; 2,3-DIHYDROQUINAZOLIN-4(1H)-ONES; DERIVATIVES; WATER; PHTHALAZINE;

D O I：

10.1007/s11164-013-1087-2

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An eco-friendly procedure for synthesis of 2,3-dihydroquinazoline-4(1H)-one, 2H-indazolo[2,1-b]phthalazinetrione, and benzo[4,5]imidazo[1,2-a]pyrimidine derivatives by three-component reaction, with phosphoric acid supported on alumina as catalyst, is described. Noticeable features of the method are that it is solvent-free, work-up is easy, yields are excellent, and the catalyst is reusable.

引用

页码：1879 / 1898

页数：20

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