Reaction of 2-guanidinobenzoxazole with several halogenated active methylene compounds has revealed
formation of the corresponding dihydroimidazole derivatives under solvent free conditions in excellent yield. The
anti-bacterial evaluation of the newly synthesized products against different types of Gram-positive and Gramnegative
bacteria was performed. Most of products showed high inhibitory effect. The structure of all compounds has
been characterized by on IR, 1H-NMR, 13C-NMR, Mass spectrum and some X-ray diffractions.