Dewi, Rita Sharmila and Zaharani, Lia and Johan, Mohd Rafie and Khaligh, Nader Ghaffari (2024) An efficient piperazine-based tertiary poly(amic acid) heterogeneous catalyst to prepare pyrrolidinone scaffolds. Synthetic Communications, 54 (19). pp. 1679-1689. ISSN 0039-7911, DOI https://doi.org/10.1080/00397911.2024.2400561.
Full text not available from this repository.Abstract
Given the abundance of functional groups, meso- and macro-pores, and a high surface area, the piperazine-based poly(amic acid) was employed as a heterogeneous catalyst in the multicomponent reaction to prepare pyrrolidinone scaffolds in a green solvent, acting as a medium for mass transfer and crystallization solvent. The important parameters of the reaction were investigated to find the optimal reaction conditions. A conversion of 100% was obtained at reflux conditions within 30-100 min using a catalytic amount of 200 mg of piperazine-based poly(amic acid) per 2 mmol of reactants (100 mg of cat./1 mmol of reactant). The piperazine-based poly(amic acid) exhibited high recyclability and the recovered catalyst could be used in successive runs without worthy loss in its activity. This work revealed the catalytic activity of the piperazine-based poly(amic acid) as a promising functional polymeric heterogeneous catalyst for organic synthesis.
| Item Type: | Article |
|---|---|
| Funders: | Nippon Sheet Glass Foundation for Materials Science and Engineering, Japan [Grant no. IF008-2023] |
| Uncontrolled Keywords: | Functional polymer; Heterogeneous catalysis; Hydrogen bond; Heterocycles; Multicomponent reaction |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 21 Oct 2025 01:36 |
| Last Modified: | 21 Oct 2025 01:36 |
| URI: | http://eprints.um.edu.my/id/eprint/46516 |
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