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Carbon‐Based Solid Acid as An Efficient and Reusable Catalyst for One‐Pot Synthesis of Tetrasubstituted Imidazoles under Solvent‐Free Conditions
Author(s) -
TavakoliHoseini Niloofar,
Davoodnia Abolghasem
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201190053
Subject(s) - chemistry , benzil , catalysis , ammonium acetate , solid acid , organic chemistry , aldehyde , amine gas treating , reaction conditions , environmentally friendly , carbon fibers , combinatorial chemistry , composite number , ecology , high performance liquid chromatography , biology , materials science , composite material
Carbon‐based solid acid catalyst was found to be highly efficient, eco‐friendly and recyclable heterogeneous catalyst for the multicomponent reaction of benzil, aromatic aldehyde, primary amine and ammonium acetate, giving rise to 1,2,4,5‐tetrasubstituted imidazoles in good to excellent yields. The present methodology offers several advantages, such as high yields, short reaction time, mild reaction condition and a recyclable catalyst with a very easy work up.