ItemArticle

Redox-active tetra-amino cobalt phthalocyanine electrocatalyst for sustainable electrochemical synthesis of 2-(pyridin-4-yl)-1H-benzo[d]imidazole

Title
Redox-active tetra-amino cobalt phthalocyanine electrocatalyst for sustainable electrochemical synthesis of 2-(pyridin-4-yl)-1H-benzo[d]imidazole
Creator
Jayan, Krishnapriya; Varghese, Anitha
Description
An electrocatalyst bearing a cobalt phthalocyanine derivative was developed by modifying carbon fibre paper electrode with polythiophene-3-acetic acid (pTAA) and further immobilizing tetra-amino cobalt phthalocyanine (TACoPc). The electrode was topographically and electrochemically characterized to validate its surface modification and functional suitability. This energy efficient electrocatalyst (CFP-TAA-TACoPc) was explored, for the sustainable synthesis of 2-(pyridin-4-yl)-1 H -benzo[ d ]imidazole at 1.35 V, with 87.6 1.267 % product yield at ambient conditions. o -phenylenediamine and pyridine-4-carboxaldehyde were used as starting materials, with ethanol as solvent, and lithium perchlorate as supporting electrolyte, using a three-electrode system, in a single compartment cell. The benzimidazole derivative was observed to crystallize out after completion of the reaction, negating the need for any further purification and was characterized using 1HNMR and GCMS. This work highlights the potential of electrochemical strategies as a sustainable and efficient alternative to conventional methods for heterocyclic synthesis. 2026 Elsevier B.V.
Source
Molecular Catalysis;Volume;597;Issue;;Article No.;115932;
Date
01-01-2026
Publisher
Elsevier B.V.
Subject
Benzimidazole; Cobalt phthalocyanine; Electrochemical synthesis; Electropolymerization
Coverage
Jayan K., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India, Centre for Renewable energy and Environmental Sustainability, Christ University, Karnataka, 560 029, India; Varghese A., Department of Chemistry, Christ University, Karnataka, Bangalore, 560029, India, Centre for Renewable energy and Environmental Sustainability, Christ University, Karnataka, 560 029, India
Rights
All Open Access; Hybrid Gold Open Access
Relation
ISSN: 24688231; CODEN: MCOAD
Format
online
Language
English
Type
Article

Citation

Jayan, Krishnapriya; Varghese, Anitha, “Redox-active tetra-amino cobalt phthalocyanine electrocatalyst for sustainable electrochemical synthesis of 2-(pyridin-4-yl)-1H-benzo[d]imidazole,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22386.

Output Formats