作者:Zhenbang Lou、Ningning Man、Haijun Yang、Changjin Zhu、Hua Fu
DOI:10.1055/s-0036-1591565
日期:2018.6
An efficient and practical method for the synthesis of 1,2,4-triazolo[5,1-b]quinazolin-9(3H)-ones has been developed via the copper-catalyzed domino reactions of readily available substituted N′-acetyl-2-bromobenzohydrazides with cyanamide. The protocol uses inexpensive CuI as the catalyst, and no other ligand or additive was required. The target products were prepared in good to excellent yields with
已经通过铜催化的多米诺反应开发了一种有效且实用的合成 1,2,4-三唑并[5,1-b]喹唑啉-9(3H)-酮的方法。 2-溴苯甲酰肼与氰胺。该协议使用廉价的 CuI 作为催化剂,不需要其他配体或添加剂。目标产物以良好到极好的收率制备,并且对各种官能团具有耐受性。