CuI/MnO2 nanocatalysed synthesis of bioactive 2-substituted benzimidazoles

[Display omitted] •The synthesis and characterization of a novel nanocatalyst CuI/MnO2 was investigated.•The catalyst was employed in the reaction of various benzaldehydes with o-phenylenediamine to synthesize benzimidazoles.•The fabricated catalyst was easily reused and recycled several times witho...

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Bibliographic Details
Published in:Inorganic chemistry communications 2025-01, Vol.171, p.113556, Article 113556
Main Authors: Nisha, Kohli, Sahil, Aggarwal, Khushboo, Singh, Snigdha, Sharma, Neera, Chandra, Ramesh
Format: Article
Language:English
Subjects:
Benzimidazoles
Catalyst
Copper iodide
Nanocomposite
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Summary:[Display omitted] •The synthesis and characterization of a novel nanocatalyst CuI/MnO2 was investigated.•The catalyst was employed in the reaction of various benzaldehydes with o-phenylenediamine to synthesize benzimidazoles.•The fabricated catalyst was easily reused and recycled several times without remarkable loss of its catalytic activity. This work focusses on the development and characterization of efficient CuI/MnO2 nano catalyst, characterized using XPS, XRD, EDAX, FTIR, FESEM, BET (surface area: 8.01 m2/g, a pore radius: 17.052 Å and a pore volume: 0.011 cm3/g) and TEM techniques. The reactivity of this catalyst was evaluated for the synthesis of biologically active 2-substituted benzimidazoles through condensation of o-phenylenediamine with benzaldehydes. The process features short reaction time, high TON (997.35), green conditions, high yield, easy work-up, good green metrices values such as low E-factor (0.17) and Process mass efficiency (PMI) (1.16) high Reaction mass efficiency (RME) value (91.2 %) and carbon efficiency (CE) (94 %) are good characteristics of the synthesized catalyst.
ISSN:1387-7003
DOI:10.1016/j.inoche.2024.113556