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World Journal of Chemical Education. 2022, 10(2), 62-64
DOI: 10.12691/WJCE-10-2-2
Original Research

Derivatization of Alcohols Using (bmim)HSO4: A Green Approach for the Undergraduate Chemistry Laboratory

Sharda Mahilkar Sonkar1, , Sujata Sengupta1, Shivani Singh1 and Anshika Lumb1

1Department of Chemistry, Miranda House, University of Delhi, Delhi, India

Pub. Date: March 23, 2022
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Sharda Mahilkar Sonkar, Sujata Sengupta, Shivani Singh and Anshika Lumb. Derivatization of Alcohols Using (bmim)HSO4: A Green Approach for the Undergraduate Chemistry Laboratory. World Journal of Chemical Education. 2022; 10(2):62-64. doi: 10.12691/WJCE-10-2-2

Abstract

Alcohol is one of the functional groups detected as part of qualitative organic analysis. The final identification of alcohol involves the preparation of suitable crystalline derivative, usually the 3,5-dinitrobenzoate. According to the standard procedure, 3,5-dinitrobenzoic acid is first converted to 3,5-dinitrobenzoyl chloride by reaction with either phosphorous pentachloride (PCl5) or thionyl chloride (SOCl2). However, in this reaction, hazardous side products like phosphorous oxychloride (POCl3), hydrochloric acid (HCl) and sulphur dioxide (SO2) are produced. In the present method, we report the direct and benign conversion of alcohols to the corresponding 3,5-dinitrobenzoates using ionic liquid, (bmim)HSO4 under microwave irradiation.

Keywords

alcohol, qualitative organic analysis, 3，5-dinitrobenzoate, ionic liquid, microwave

Copyright

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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