Gallium(III) triflate-catalyzed one-pot selective synthesis of 2 3-dihydroquinazolin-4(1H)-ones and quinazolin-4(3H)-ones

被引：295

作者：

Chen, Jiuxi ^{[1
]}

Wu, Dengze ^{[1
]}

He, Fei ^{[1
]}

Liu, Miaochang ^{[1
]}

Wu, Huayue ^{[1
]}

Ding, Jinchang ^{[1
]}

Su, Weike ^{[1
,2
]}

机构：

[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Peoples R China

[2] Zhejiang Univ Technol, Coll Pharmaceut Sci, Zhejiang Key Lab Pharmaceut Engn, Hangzhou 310014, Zhejiang, Peoples R China

来源：

TETRAHEDRON LETTERS | 2008年 / 49卷 / 23期

基金：

中国国家自然科学基金;

关键词：

gallium(III) triflate; 2,3-dihydroquinazolin-4(1H)-ones; quinazolin-4(3H)-ones; one-pot; selective synthesis;

D O I：

10.1016/j.tetlet.2008.03.127

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of 2,3-dihydroquinazolin-4(1H)-ones and quinazolin-4(3H) -ones have been synthesized in good to excellent yields and high selectivity by one-pot reaction using isatoic anhydride, ammonium acetate (or amines), and aldehydes in ethanol or in DMSO under mild conditions, respectively. The reaction was efficiently prompted by 1 mol % Ga(OTf)(3) and the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity. (C) 2008 Published by Elsevier Ltd.

引用

页码：3814 / 3818

页数：5

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