title: One-pot synthesis of 2,4,5-trisubstituted imidazoles using [BPy]H2PO4, an efficient and recyclable catalyst.
abstract: [BPy]H(2)PO(4) was easily prepared and used as an efficient and recyclable catalyst for the one-pot synthesis of 2,4,5-trisubstituted imidazoles under solvent-free conditions in good to excellent yields. Solvent-free conditions, simple experimental and workup procedures, and the use of a nontoxic, recyclable catalyst of an environmentally benign nature are remarkable features of the procedure.
authors.affiliation: Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, Hubei Province, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, China.
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhongqiang
authors.initials: Z
authors.lastname: Zhou
mesh_terms: D000085:Acetates / Q000737:chemistry; D001547:Benzaldehydes / Q000737:chemistry; D002384:Catalysis; D002855:Chromatography, Thin Layer; D006842:Hydrocarbons, Brominated / Q000737:chemistry; D007093:Imidazoles / Q000138:chemical synthesis* / Q000737:chemistry; D052578:Ionic Liquids / Q000138:chemical synthesis* / Q000737:chemistry; D010658:Phenylglyoxal / Q000031:analogs & derivatives / Q000737:chemistry; D011725:Pyridines / Q000737:chemistry*; D015203:Reproducibility of Results; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: D000085:Acetates; D001547:Benzaldehydes; D006842:Hydrocarbons, Brominated; D007093:Imidazoles; D052578:Ionic Liquids; D011725:Pyridines; D014867:Water; D010658:Phenylglyoxal; C018824:ammonium acetate; C006697:benzil; C047757:butyl bromide