Khaligh, Nader Ghaffari and Mihankhah, Taraneh and Johan, Mohd Rafie and Juan, Joon Ching (2019) 4-Imidazol-1-yl-butane-1-sulfonic acid ionic liquid: Synthesis, structural analysis, physical properties and catalytic application as dual solvent-catalyst. Phosphorus, Sulfur, and Silicon and the Related Elements, 194 (9). pp. 866-878. ISSN 1042-6507, DOI https://doi.org/10.1080/10426507.2018.1487426.
Full text not available from this repository.Abstract
4-Imidazol-1-yl-butane-1-sulfonic acid (ImBu-SO3H) has been successfully synthetized and fully characterized by FT-IR and high-resolution NMR spectroscopy (1H, 13C). The “plausible” alternative structures of ImBu-SO3H were discussed on the basis of its NMR data. The ionic liquid showed interesting dual solvent-catalyst property, which was studied experimentally for the acetylation of a variety of functionalized alcohols, phenols, thiols, amines and α-tocopherol (α-CTP) as the most active form of vitamin E with acetic anhydride and which provided good yields within a short reaction time. ImBu-SO3H was successfully recycled by product extraction with an average recovered yield of 82% for 5 subsequent runs. The catalytic activity of the recycled ImBu-SO3H showed almost no loss even after five consecutive runs. © 2019, © 2019 Taylor & Francis Group, LLC.
| Item Type: | Article |
|---|---|
| Funders: | High Impact Research Grant (No. RP025A/B/C-14AET) for Scientific Research from University of Malaya, Malaysia |
| Uncontrolled Keywords: | Liquid sulfonic acid catalyst; dual solvent-catalyst activity; acetylation; vitamin E; tocopherol |
| Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 23 Apr 2020 14:43 |
| Last Modified: | 23 Apr 2020 14:43 |
| URI: | http://eprints.um.edu.my/id/eprint/24231 |
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