1Department of Chemistry, Miranda House, University of Delhi, Delhi, India
World Journal of Chemical Education.
2022,
Vol. 10 No. 2, 62-64
DOI: 10.12691/wjce-10-2-2
Copyright © 2022 Science and Education PublishingCite this paper: Sharda Mahilkar Sonkar, Sujata Sengupta, Shivani Singh, Anshika Lumb. Derivatization of Alcohols Using (bmim)HSO
4: 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.
Correspondence to: Sharda Mahilkar Sonkar, Department of Chemistry, Miranda House, University of Delhi, Delhi, India. Email:
sharda.sonkar@mirandahouse.ac.inAbstract
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.
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