Journal of Heterocyclic Chemistry

Bis (α??bromo ketones): Versatile Precursors for Novel Bis (s??triazolo [3, 4??b][1, 3, 4] thiadiazines) and Bis (as??triazino [3, 4??b][1, 3, 4] thiadiazines)

MR Shaaban, AHM Elwahy

文献索引：Shaaban, Mohamed R.; Elwahy, Ahmed H. M. Journal of Heterocyclic Chemistry, 2012 , vol. 49, # 3 p. 640 - 645

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被引用次数: 8

摘要

Abstract A synthesis of bis (α-bromo ketones) 5a-c and 6b, c was accomplished by the reaction of bis (acetophenones) 3a-c and 4b, c with N-bromosuccinimide in the presence of p-toluenesulfonic acid (p-TsOH). Treatment of 5a-c and 6b, c with each of 4-amino-3- mercapto-1, 2, 4-triazoles 9a, b and 4-amino-6-phenyl-3-mercapto-1, 2, 4-triazin-5 (4H)- ones 13 in refluxing ethanol afforded the novel bis (s-triazolo [3, 4-b][1, 3, 4] thiadiazines) ...