In the present study, a set of different benzoxazole derivatives has been synthesized from ethyl acetoacetate, ethoxymethylene malononitrile, NaNO2, and organic acids. Analytical instruments like proton NMR (1H), carbon (13C), infrared spectroscopy (IR), LC-MS mass spectrometry were used for structural characterization. Synthesized molecules evaluated In-vitro antioxidant property (DPPH assay, ...

UV-vis absorption spectrum of internally hydrogen-bonded enol structures 2-(2'-hydroxyphenyl)benzoxazole is calculated for the transitions to first excited state using Franck-Condon approximation and harmonic model vibrations. It shown that structure with hydrogen bond OH...O shifted larger energy by about 0.13 eV compared most stable OH...N. The largest intensity vibronic electronic demonstrat...

A new series of 2,5- and/or 6-substituted benzoxazoles (7a-f), benzimidazoles (8a-g) holding cyclohexyl or cyclopentyl moieties at position 2 and 5- or 6-substituted-2-cyclohexylaminomethylbenzoxazoles (9a, b) was synthesized in order to determine their antimicrobial activities and feasible structure-activity relationships. The synthesized compounds were tested in vitro against three Gram-posit...

FT-Raman and FT-IR spectra of 5-methyl-2-(p-fluorophenyl)benzoxazole were recorded and analysed. The vibrational frequencies of the compound have been computed using the Hartree-Fock/6-31G* basis and compared with the experimental values.