Synthesis of 3-(3-(Phenacyl/Alkyl/Benzylthio)-[1,2,4]Triazolo[3,4-B][1,3,4]Thiadiazol-6-Yl)-2<i>H</i>-Chromen-2-Ones
作者:Sreenu Pavurala、Rajeswar Rao Vedula
DOI:10.1080/10426507.2013.798790
日期:2014.1
3,5-di mercapto-4-amino-s-triazole in POCl3to generate 3-(3-mercapto-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)-2H-chromen-2-one (3). Reaction of 3 with different substituted phenacyl/benzyl/allyl bromides in anhydrous ethanol gave corresponding 3-(3-(phenacyl/alkyl/benzylthio)-[1,2,4]triazolo[3,4-b][1,3,4] thiadiazol-6-yl)-2H-chromen-2-ones 5. The structures of newly prepared compounds were confirmed
摘要 香豆素-3-羧酸与3,5-二巯基-4-氨基-s-三唑在POCl3中反应生成3-(3-巯基-[1,2,4]三唑并[3,4-b][ 1,3,4]thidiazol-6-yl)-2H-chromen-2-one (3)。3与不同取代苯甲酰基/苄基/烯丙基溴化物在无水乙醇中反应得到相应的3-(3-(苯甲酰基/烷基/苄硫基)-[1,2,4]三唑并[3,4-b][1,3, 4] thiadiazol-6-yl)-2H-chromen-2-ones 5. 新制备的化合物的结构由它们的分析和光谱数据证实。图形概要