Saberi, Ali and Rangappa, K. S. (2009) Zeolite hy catalyst for the synthesis of benzimidazole and its 2-alkyl, aryl and heteroaryl derivatives under microwave irradiation and solvent-free condition. Synthesis and Reactivity In Inorganic Metal-Organic And Nano-Metal Chemistry, 39 (7). pp. 425-427. ISSN 1553-3182
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A simple, fast, efficient and environmentally friendly synthesis of benzimidazole and its 2-alkyl, aryl and heteroaryl substituted derivatives was developed using zeolite HY. Two component cyclolcondensation of 1,2-phenylenediamine (o-phenylenediamine) and commercially available carboxylic acids catalyzed by zeolite HY without any solvent under microwave irradiation leads to 1H-benzimidazole and 2-substituted derivatives in high yields and purity. The similar reaction was not applicable to the preparation of benzimidazole and its 2-alkyl, aryl and heteroaryl substituted derivatives. All the synthesized compounds were characterized by 1H-NMR, IR, Mass and CHNS analysis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | benzimidazole; microwave irradiation; solvent-free; zeolite HY |
| Subjects: | C Chemical Science > Chemistry |
| Divisions: | Department of > Chemistry |
| Depositing User: | Users 19 not found. |
| Date Deposited: | 31 Aug 2019 05:56 |
| Last Modified: | 31 Aug 2019 05:56 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/7432 |
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