BF3/nano-sawdust as a green, biodegradable and inexpensive catalyst for one-pot synthesis of tri-substituted imidazoles under solvent free conditions


1 Department of Chemistry, College of Science, Yazd University, Yazd, P.O. Box 89195-741, Iran

2 Department of Chemistry, College of Science, University of Kashan, Kashan, Iran.


BF3/nano-sawdust as a green, inexpensive, natural, biodegradable and readily available biopolymer solid acid catalyst was synthesized and characterized. This catalystwas used successfully for the synthesis of various tri-substituted imidazoles in high yields under solvent free conditions.