AbstractThis study aims to synthesize hybrid compounds “via” the coupling of sulphonamide and benzothiazole into one structure that may have improved antibacterial property. The N-(biphenyl-4-yl) thiourea (1) used for the synthesis of the targeted sulphonamides was obtained by reacting diphenylamine and ammonium thiocyanate at room temperature. Cyclization of N-(biphenyl-4-yl)thiourea gave 2-amino-6-phenylbenzothiazole (2) which reacted with benzenesulphonyl chloride and para-toulene sulphonyl chloride to give the targeted sulphonamides (3a & 3b). The synthesized compounds were characterised using melting point, infra-red spectroscopy, nuclear magnetic resonance and elemental analysis. Anti-bacterial screening of the synthesised compounds indicated that all the compounds showed anti-bacterial properties, except 2-amino-6-phenylbenzothiazole that did not show any activity on Escherichia coli.
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