A Novel and Efficient Regiospecific Preparation of Arenesulfonamide Derivatives of 3,5-Diamino-1,2,4-triazole
作者:Kelly Chibale、Jérôme Dauvergne、Paul Wyatt
DOI:10.1055/s-2002-19793
日期:——
new simple and efficient procedure was designed for the regiospecific preparation of arenesulfonamide derivatives of 3,5-diamino-1,2,4-triazole 1 which are precursors of N-([1,2,4]triazolo[1,5-a]pyrimidin-2-yl)arenesulfonamides 2, an important family of herbicidal and antibacterial agents, The key feature of this procedure is the preparation of a wide range of compounds 1 on a large scale, in pure
设计了一种新的简单有效的方法,用于区域特异性制备 3,5-二氨基-1,2,4-三唑 1 的芳烃磺酰胺衍生物,该衍生物是 N-([1,2,4]三唑并[1,5- a]pyrimidin-2-yl)arenesulfonamides 2,一个重要的除草剂和抗菌剂家族,该程序的关键特征是大规模制备各种化合物 1,以纯形式和高产率,无需用于任何后处理或使用高度危险的肼。这可以通过由硫酰氯促进形成三唑环的新型串联反应来实现。