Journal of Chemistry · 2012 · 13 citations · 0 references
Natural SciencesChemistryGreen ChemistryOrganic ChemistryMicrowave-assisted SynthesisOrganic SynthesisSolvent-free SynthesisBenzimidazole ChemistryBenzimidazole SynthesisMicrowave-assisted CatalysisMicrowave-assisted Condensation ReactionsMicrowave-assisted Green SynthesisMicrowave-assisted Organic SynthesisMicrowave-assisted Solvent-free SynthesisSolvent-free Heterocycle Synthesis
An expeditious synthesis of 2‐aryl‐benzimidazoles by the condensation of o ‐phenylenediamine with various arylaldehydes is described. This greener protocol is catalyzed by 1,3‐Dibromo 5,5‐dimethylhydantoin (DBH), and proceeds efficiently in the absence of any organic solvent under thermal condition and microwave irradiation in high yields.