Reactions with hydrazonoyl halides -: 59:: Synthesis and antimicrobial activity of 2,3-dihydro-1,3,4-thiadiazole, triazolino[4,3-a]pyrimidine, and pyrimido[1,2-b][1,2,4,5]tetrazin-6-one containing benzofuran moiety

2,3-Dihydro-1,3,4-thiadiazole, triazolino[4,3-a]pyrimidine and pyrimido[1,2-b][1,2,4,5]tetrazin-6-one containing benzofuran Moiety were synthesized from C-benzofuran-2-yl-N-phenylhydrazonoyl bromides, and the appropriate alkyl arylidenehydrazinecabodithioates and pyrimidine-2-thione and N-aminopyrimidine-2-thione, respectively. All structures of the newly synthesized compounds were elucidated by elemental analysis, spectral data, and alternative synthetic methods whenever possible. Newly compounds are capable of high inhibiting the growth of bacteria (gram positive and gram negative).