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    题名 作者 年代 出处 被引量
1Supported N-propylsulfamic acid on magnetic nanoparticles used as recoverable and recyclable catalyst for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones in water显示文摘An efficient and eco-friendly method is reported for the synthesis of 2-substituted-2,3-dihydroquinazolin -4(1 H)-ones from direct cyclocondensation of anthranilamide with aldehydes and ketones using N-propylsulfamic acid supported onto magnetic Fe_3O_4 nanoparticles(MNPs-PSA) as a recoverable and recyclable nanocatalyst in good to excellent yields in water at 70℃.The catalyst was readily separated using an external magnet and reusable without significant loss of their catalytic efficiency.Amin Rostami Bahman Tahmasbi Hoshyar Gholami Hajir Taymorian 2013Chinese Chemical Letters2013,24,3:7
2Synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by a-chymotrypsin显示文摘We discovered that a-chymotrypsin has a promiscuous ability to catalyze the cyclocondensation of aromatic and aliphatic aldehydes with 2-aminobenzamides to afford the corresponding 2,3-dihydroquinazolin-4(1H)-ones successfully in high yields(90%–98%) under alcohol solvent. The catalytic activity of a-chymotrypsin was evaluated through investigating the temperature, the enzyme loading and the ratio of substrates in the enzyme-catalyzed reactions. The present method proves to be efficient and environmentally friendly in terms of short reaction time, high yield, green catalyst and the clean products obtained without further purification processes.Shi-Guo Zhang Zong-Bo Xie Lian-Sheng Liu Meng Liang Zhang-Gao Le 2017Chinese Chemical Letters2017,28,1:2
32,3-二氢喹唑啉-4(1H)-酮类衍生物的合成研究进展显示文摘概述了水溶剂、有机溶剂、离子液体、无溶剂、乙醇/水溶剂中合成2,3-二氢喹唑啉-4(1H)-酮衍生物的研究进展,主要包括以邻氨基苯甲酰胺、醛(或酮)为基础原料的合成途径和以靛红酸酐、胺或铵盐化合物、醛(或酮)为基础原料的合成途径;并从催化剂性能、反应温度、反应时间、目标产物收率、底物适应用性范围等方面对各合成方法进行简述和比较。张士国 陈霞 漆偲劼 2023山东化工2023,52,5:0
4静置条件下高效合成2,3-二氢-4(1H)-喹唑啉酮衍生物(英文)显示文摘静置条件下,以无水乙醇为溶剂盐酸为催化剂,简单高效地合成了系列2,3-二氢-4(1H)-喹唑啉酮衍生物。该反应的主要优点是简单易行,操作简单,容易纯化,催化剂成本低,反应条件温和节约能源。仵锁娟 肖楠 陈保华 陈国锋 2019化学研究与应用2019,31,3:0
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