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PEG-mediated catalyst-free expeditious synthesis of 2-substituted benzimidazoles and bis-benzimidazoles under solvent-less conditions |
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| Authors: | Chhanda Mukhopadhyay Pradip Kumar Tapaswi |
| Affiliation: | Department of Chemistry, University of Calcutta, 92, APC Road, Kolkata 700009, India |
| Abstract: | A wide variety of 2-substituted benzimidazoles and bis-benzimidazoles were synthesized in high yields by PEG-mediated catalyst-free synthesis under solvent-less conditions. The products were directly recrystallized from hot methanol. The reaction occurred giving excellent yields with low as well as high molecular weight PEGs. |
| Keywords: | Aldehydes ortho-Phenylenediamines Polyethylene glycol Catalyst-free Solvent-less conditions 2-Substituted benzimidazoles Bis-benzimidazoles |
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