FeCl₃-Doped Polyaniline Nanoparticles as Reusable Heterogeneous Catalyst for the Synthesis of 2-Substituted Benzimidazoles

Abstract

FeCl₃-doped polyaniline nanoparticles efficiently catalyze the synthesis of 2-substituted benzimidazoles by the reaction of aldehydes with o-phenylenediamine. Synthesis and characterization of the catalyst are described, and the obtained results confirms good dispersion of the FeCl₃ on the polyaniline. Simple workup, mild reaction conditions, low cost, easy separation, and reusability of the catalyst are some advantages of this method.

Keywords:

• Benzimidazoles
• FeCl₃
• nanoparticle
• o-phenylenediamine
• polyaniline

ACKNOWLEDGMENT

We are thankful to the Yazd University Research Council for partial support of this work.

Notes

^a Isolated yields.

^a Isolated yields.

^a Isolated yields.