Several kinds of alkylenebis (thiosemicarbazide) and alkylenebis (bithiourea) derivatives were synthesized in order to examine their antimicrobial activity. 1, 1'-Dibenzylidene-4, 4'-alkylene-bis (thiosemicarbazides) were prepared from 4, 4'-alkylene-bis (thiosemicarbazides) and arylaldehydes, and 1, 1'-diaroyl-4, 4'-hexamethylene-bis (thiosemicarbazides) were prepared by the reaction of 4', 4'-hexamethylene-bis (thiosemicarbazide) with aroyl chlorides. 1, 1'-Dialkyl- or diaryl-6, 6'-alkylene-bis (bithioureas) were synthesized from 4, 4'-alkylene-bis (thiosemicarbazides) and alkyl or aryl isothiocyanates. N, N'-Hexamethylene-bis [2-amino-5-(2-methoxyphenyl) thiadiazole] was prepared by the ring closure of 1, 1'-bis (2-methoxybenzylidene) -4, 4'-hexamethylene-bis (thiosemicarbazide).
为了检测其抗微
生物活性,合成了几种烷基亚甲基双(
硫脲素)和烷基亚甲基双(二
硫脲)衍
生物。1, 1'-二苄叉-4, 4'-烷基亚甲基双(
硫脲素)是通过4, 4'-烷基亚甲基双(
硫脲素)和芳醛的反应制备的,而1, 1'-二芳酰-4, 4'-六亚甲基双(
硫脲素)则是通过4, 4'-六亚甲基双(
硫脲素)与芳酰
氯的反应制备的。1, 1'-二烷基或二芳基-6, 6'-烷基亚甲基双(二
硫脲)是通过4, 4'-烷基亚甲基双(
硫脲素)与烷基或芳基异
硫氰酸酯的反应合成的。N, N'-六亚甲基-双[2-
氨基-5-(2-
甲氧基苯基)
噻二唑]是通过1, 1'-双(2-甲氧基苄叉)-4, 4'-六亚甲基双(
硫脲素)的环合反应制备的。