Sulfamic acid as a reusable and green catalyst for efficient and simple synthesis of 2-substituted-2,3-dihydroquinazolin-4(1H)-ones in water or methanol

查看全文 作　　者：Amin [1]Rostami;Ashkan [1]Tavakoli

机构地区：[1]Department of Chemistry Faculty of Science,University of Kurdistan,Sanandaj 6617715143,Iran

出　　处：《Chinese Chemical Letters》索引2011年第22卷第11期,共4页

摘　　要：A series of 2,3-dihydroquinazolin-4(1H)-ones have been synthesized in good to excellent yields through direct cyclocondensation of anthranilamide and aryl aldehydes or ketones in water or methanol under mild conditions.The reaction was efficiently promoted by 10 mol%sulfamic acid(SA,H2NSO3H) and the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity. 关键词：甲醇合成氨基磺酸催化剂可重复使用水温和条件 MOL 反应

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Sulfamic acid as a reusable and green catalyst for efficient and simple synthesis of 2-substituted-2,3-dihydroquinazolin-4(1H)-ones in water or methanol

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