(4-咔唑-9-基-苯亚甲基)-(5-咔唑-9-亚甲基-[1,3,4]噻二唑-2-基)-胺的合成与表征

以咔唑、氯乙酸和硫代氨基脲为原料,经亲核取代、闭环反应合成了5-咔唑-9-亚甲基-2-氨基-1,3,4-噻二唑。同时,以咔唑和对氯苯甲醛为原料,在碱性催化剂条件下,在DMF溶液中回流反应得到4-咔唑-9基苯甲醛。两者通过固相研磨的合成方法得到新化合物(4-咔唑-9-基-苯亚甲基)-(5-咔唑-9-亚甲基-1,3,4]噻二唑-2-基)-胺。通过单因素法对(4-咔唑-9-基-苯亚甲基)-(5-咔唑-9-亚甲基-1,3,4]噻二唑-2-基)-胺的合成条件进行探讨,确定了合成该化合物的最佳反应条件:反应物物质的量比为1∶1∶1.2,反应时间为20min。其结构经IR、1HNMR、UV-vis和元素分析进行表征。

Syntheses and Characterization of (4-carbazole-9-yl-benzomethylene)-(5-carbazole-9-methylene-[1,3,4] thiadiazole-2-yl) amine

2-amino-5-( N-Carbazolyl methylene)-1,3,4-thiadiazole was compounded with carbazole、chloroacetic acid and thiosemicarbazide under nucleophilic substitution and closed-loop reaction.The compound 4-(9H-Carbazol-9-yl) benzaldehyde was prepared by carbazole with 4-chlorobenzaldehyde under refluxing by the catalysis of alkaline catalyst. At the same time, the new compound(4-carbazole-9-yl-benzomethylene)-(5-carbazole-9-methylene-1,3,4] thiadiazole-2-yl) amine was synthesized by 4-(9H-Carbazol-9-yl) benzaldehyde with 2-amino-5-(N-Carbazolyl methylene)-1,3,4-thiadiazole through solvent-free solid phase grinding method. The factors that influences on product yield were discussed by single factor method. The result that appropriate reaction conditions are as follows: molar ratio of reactants was 1∶1∶1.2, the reaction time was 20 minutes. The product was characterized by IR., 1H NMR UV-Vis and ele mental analysis.