Shahnavaz, Zohreh and Khaligh, Nader Ghaffari and Mihankhah, Taraneh and Johan, Mohd Rafie (2020) Design, synthesis, characterization, and physical property determination of a new ionic liquid: the preparation of triazolo-pyrimidines at room temperature under metal-free conditions. Research on Chemical Intermediates, 46 (10). pp. 4645-4658. ISSN 0922-6168, DOI https://doi.org/10.1007/s11164-020-04226-4.
Full text not available from this repository.Abstract
A new ionic liquid is synthesized, and its chemical structure is characterized by FTIR, 1D NMR and 2D NMR, and mass analyses. The thermal behavior and thermal stability of this ionic liquid are investigated. The results approved the formation of 4,4MODIFIER LETTER PRIME-trimethylene-N,NMODIFIER LETTER PRIME-dipiperidinium sulfate instead of 4,4MODIFIER LETTER PRIME-trimethylene-N,NMODIFIER LETTER PRIME-dipiperidinium hydrogen sulfate. Moreover, the synthesis of triazolo-pyrimidine derivatives was successfully conducted in the presence of new ionic liquid at room temperature under metal-free conditions, which demonstrated the catalytic efficiency of this ionic liquid. The workup was carried out without the utilization of high-cost column chromatography. After extraction of desired products, the residual ionic liquid could be recycled and reused in the next runs. New ionic liquid exhibited high catalytic activity even after fifth run with no significant change in the chemical structure.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Ionic liquid; Structure elucidation; Heterocycles; Three-component reaction; Waste prevention |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 30 Nov 2023 10:34 |
| Last Modified: | 30 Nov 2023 10:34 |
| URI: | http://eprints.um.edu.my/id/eprint/36495 |
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