A simple and efficient Brønsted acid catalyzed synthesis of 2-aryl-quinazolinones via cyclization of 2-aminobenzamides with benzonitrile in PEG under metal and ligand-free condition. All substituted benzonitriles were also well participated with the formation of the corresponding products in moderate to good yields.

中文翻译：

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布朗斯台德酸通过 PEG 中 2-氨基苯甲酰胺与苯甲腈的环化反应合成 2-芳基-喹唑啉酮

一种简单有效的布朗斯台德酸催化合成 2-芳基喹唑啉酮，通过 2-氨基苯甲酰胺在 PEG 中在无金属和配体条件下与苄腈环化。所有取代的苯甲腈也很好地参与了相应产物的形成，产率中等至良好。