Synthetic Approach Toward Heterocyclic Hybrids of [1,2,4]Triazolo[ 3,4-b][1,3,4]thiadiazines.

The synthesis of novel heterocyclic [1,2,4]triazolo[3,4- b][1,3,4]thiadiazine hybrids by a bimolecular reaction of 2-(4-amino-5- mercapto-4H-[1,2,4]triazol-3-yl)phenol with an aromatic or heterocyclic α-bromoacetyl derivatives is described. This synthetic procedure starts from an unprotected phenol. [ABSTRACT FROM AUTHOR]