Abstract
Solvents play a crucial role in promoting chemical reactions. They are essential for transporting reactants and energy transfer. Mostly volatile organic compounds (VOCs) are used as solvents. While volatile, such solvents are flammable, environmentally hazardous, highly polluting, toxic, derived from depleting petroleum reserves, and unsustainable, and hence not considered ‘green’. Society views VOCs as a necessary evil. The fortuitous discovery of deep eutectic solvents (DESs) has changed the bleak scenario. DESs allow the sustainable conduct of chemical reactions. Site-specific DESs meet most of the requirements to be called green solvents/designer solvents/solvents of the future. This preliminary review will high-light their discovery, characteristics, properties, and applications. Through this review, we intend to introduce the concept of DESs to the novice and kindle interest in this fast-emerging field of research.
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I thank Pondicherry University, Vasishta Pharma, and Teadus Pharma for their support.
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Dr H. Surya Prakash Rao taught and conducted research in organic chemistry for 30 years at Pondicherry University, from where he superannuated in 2018. Subsequently, he served at Sharda University and Vasista Pharma. Presently, he is Scientific Advisor to Teadus Pharma Pvt. Ltd. in Hyderabad. He has served the Indian Academy of Sciences as an editorial board member for the Journal of Chemical Sciences for over ten years.
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Rao, H.S.P. Deep Eutectic Solvents. Reson 28, 1865–1874 (2023). https://doi.org/10.1007/s12045-023-1724-z
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DOI: https://doi.org/10.1007/s12045-023-1724-z