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PECULIARITIES OF 4-METHALLYL-5-METHALLYLAMINO-1,2,4-TRIAZOLE-3-THIONE HALOGENATION

Maksym M. Fizer, Mikhailo V. Slivka, Vasil G. Lendel
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Abstract


Bromination and iodination of 4-methallyl-5-methallylamino-1,2,4-triazole-3-thione lead to the annulation of five- and six-membered thiazaheterocycles, respectively. The usage of halogen excess does not give the product of 5-methallylamino group cyclization – the product of the bromine addition was isolated.

 


Keywords


[1,3]thiazolo[2,3-c][1,2,4]triazole, 1,2,4-triazole, [1,2,4]triazolo[3,4-b][1,3]thiazine, electrophilic cyclization, halogenation

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