hamid Goudarziafshar - Sayyed Jamaleddin Asadabadi University, Asadabad, ۶۵۴۱۸۳۵۵۸۳, I. R. Iran
Ahmad Reza Moosavi-Zare - Department of Chemistry, University of Sayyed Jamaleddin Asadabadi, Asadabad ۶۵۴۱۸۳۵۵۸۳, Iran
Zahra Jalilian - Sayyed Jamaleddin Asadabadi University, Asadabad, ۶۵۴۱۸۶۱۸۴۱, I. R. Iran

Nano-Zn-[۲-boromophenyl-salicylaldimine-methylpyranopyrazole]Cl۲ nanoparticles (nano-[Zn-۲BSMP]Cl۲) as a Schiff base complex and catalyst was used for the preparation of ۲,۴,۵-tri substituted imidazoles by the one-pot multi-component condensation reaction of benzil with various aromatic aldehydes and ammonium acetate at ۸۰ °C under solvent-free conditions.

Multi-component reaction, Nano-[Zn-۲BSMP]Cl۲, Schiff base complex