648422-69-9Relevant academic research and scientific papers
One-pot synthesis of 2-arylbenzimidazole, 2-arylbenzothiazole and 2-arylbenzoxazole derivatives using vanadium(IV)-salen complex as homogeneous catalyst and vanadium(IV)-salen complex nanoparticles immobilized onto silica as a heterogeneous nanocatalyst
Sharghi, Hashem,Aberi, Mahdi,Doroodmand, Mohammad Mahdi
, p. 189 - 204 (2012)
The efficient synthesis of 2-arylbenzimidazole, 2-arylbenzothiazole and 2-arylbenzoxazole derivatives is described by condensation of aryl aldehydes and o-phenylenediamines, 2-aminothiophenol and 2-aminophenol in a single pot using a catalytic amount of vanadium(IV)-salen complex or vanadium-salen nanoparticles supported on silica (5.0 mol%) in excellent isolated yields. The immobilized catalyst was characterized by powder X-ray diffraction, scanning electron microscopy, atomic force microscopy, transmission electron microscopy, inductively coupled plasma analysis, thermogravimetric instrument for analysis of nitrogen adsorption and FT-IR spectroscopy.
