Efficient synthesis of mono- and disubstituted 2,3-dihydroquinazolin-4(1H)-ones using aluminum methanesulfonate as a reusable catalyst

被引：0
|
作者：
Zhiguo Song
Lianli Liu
Yang Wang
Xiaohu Sun
机构：
[1] Bohai University,Center for Science & Technology Experiment
来源：
Research on Chemical Intermediates | 2012年 / 38卷
关键词：
2,3-Dihydroquinazolin-4(1; )-ones; Aluminum methanesulfonate; Multicomponent reactions; Isatoic anhydride;
D O I：
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中图分类号：
学科分类号：
摘要：
A wide range of mono- and disubstituted 2,3-dihydroquinazolin-4(1H)-ones were synthesized via a one-pot three components condensation of isatoic anhydride, aldehydes, and ammonium salts or primary amines in the presence of aluminum methanesulfonate in EtOH/H2O solution. The catalyst is reusable and could be recycled for several runs without any distinct decrease in its efficiency. A plausible mechanism for this one-pot three components reaction was proposed.
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页码：1091 / 1099
页数：8
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