Synthesis, Characterization, and Antibacterial Activity of Novel (1H-Benzo[d] imidazole-2-yl)-6-(diethylamino)-3H-one-xanthene, Phenoxazine, and Oxazine

摘要

A series of novel (1H-benzo[d]imidazole-2-yl)-6-(diethylamino)-3H-one-xanthene, phenoxazine, and oxazine derivatives have been synthesized from 2-(2,4-dihydroxyphenyl) benzimidazole intermediate. Synthesized compounds 8a, 8b, 8c, 8d are fluorescent in solution, photophysical properties of compounds were studied and results revealed that compounds absorb and emit in UV-visible region with good fluorescence quantum yield. Synthesized compounds are thermally stable up to 300 degrees C. The antibacterial activities of the synthesized compounds were studied by the well-diffusion method. Escherichia coli (ATTC-25922), Staphylococcus aureus (ATCC-25923), Micrococcus (ATCC-4698), and Bacillus subtilis (ATCC-55422) were used to investigate the antibacterial activities.