Triazoles and fused triazoles,III: Facile and efficient synthesis of 2,5-disubstituted-s-triazolo[3,4-b]-1,3,4-thiadiazoles |
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| Authors: | Ali A El-Emam Mohamed A Moustafa Hussein I El-Subbagh Mahmoud B El-Ashmawy |
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| Institution: | (1) Department of Medicinal Chemistry, Faculty of Pharmacy, University of Mansoura, Mansoura, Egypt |
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| Abstract: | Summary The development of a facile and efficient method for the synthesis of 2,5-diaryl-s-triazolo3,4-b]-1,3,4-thiadiazoles4 a–e from the corresponding 3-aryl-4-amino-5-mercapto-s-triazole (2), is described. 3-Aryl-4-arylideneamino-5-mercapto-s-triazoles (3 a–e) were cyclized to compounds4 a–e by heating in nitrobenzene for a few minutes.Part II: See Ref. 11] |
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| Keywords: | Oxidative cyclization s-Triazolo[3 4-b]-1 3 4-thiadiazoles |
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