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New alkoxymethyl-functionalized pyridinium-based chiral ionic liquids: synthesis, characterization and properties

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Abstract

An efficient solvent-free synthesis of a new family of functionalized chiral ionic liquids based on pyridinium cation has been developed from low-cost chiral terpenoid alcohols. An exhaustive characterization was performed using state-of-the-art techniques, such as ESI–MS, ATR FT-IR and NMR (1H, 13C, 11B, 31P, 19F) spectroscopy. Thermal properties of this new class of chiral ionic liquids were studied by TGA and DSC analyses. Catalytic potential of the synthesized CILS was also evaluated in the asymmetric reduction of prochiral acetophenones.

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Acknowledgements

Salma Mumtaz acknowledges HEC, Pakistan, for financial support under IRSIP program. Israel Cano acknowledges financial support from the European Community through a Marie Skłodowska-Curie Individual Fellowships (IF-EF; Programme/Call: H2020-MSCA-IF-2015; Proposal No: 704710—Sdchirnanocat).

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Authors and Affiliations

  1. Department of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan

    Humaira Yasmeen Gondal, Salma Mumtaz & Nargis Mumtaz

  2. GSK Carbon Neutral Laboratory for Sustainable Chemistry, University of Nottingham, NG7 2GA, Nottingham, UK

    Salma Mumtaz & Israel Cano

  3. H.E.J Research Institute of Chemistry, ICCBS, University of Karachi, Karachi, 75270, Pakistan

    Ahmed Abbaskhan

  4. Departamento de Física Aplicada, Facultad de Ciencias, Universidad de Cantabria, 39005, Santander, Spain

    Israel Cano

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  1. Humaira Yasmeen Gondal
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  4. Nargis Mumtaz
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Gondal, H.Y., Mumtaz, S., Abbaskhan, A. et al. New alkoxymethyl-functionalized pyridinium-based chiral ionic liquids: synthesis, characterization and properties. Chem. Pap. 74, 2951–2963 (2020). https://doi.org/10.1007/s11696-020-01135-z

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