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Imidazolium-Based Zwitterionic Butane-1-sulfonates: Synthesis and Properties of 4-(1-(2-Cyanoethyl)imidazolium)butane-1-sulfonate and Crystal Structures of 4-(1-Alkylimidazolium)butane-1-sulfonates (Alkyl = Methyl, Ethyl, Propyl) by Tim Peppel; Prof. Dr. Martin Köckerling is a Chemistry article available to read on EtoBox.

What is Imidazolium-Based Zwitterionic Butane-1-sulfonates: Synthesis and Properties of 4-(1-(2-Cyanoethyl)imidazolium)butane-1-sulfonate and Crystal Structures of 4-(1-Alkylimidazolium)butane-1-sulfonates (Alkyl = Methyl, Ethyl, Propyl) about?

## Abstract The reaction of 1‐alkylimidazoles (alkyl = methyl, ethyl, propyl, 2‐cyanoethyl) with 1,4‐butane sultone in equimolar stoichiometry resulted in the formation of 4‐(1‐methylimidazolium)butane‐1‐sulfonate **SBMIm**, 4‐(1‐ethylimidazolium)butane‐1‐sulfonate **SBEIm**, 4‐(1‐propylimidazolium)butane‐1‐sulfonate **SBPIm**, and 4‐(1‐(2‐cyanoethyl)imidazolium)butane‐1‐sulfonate **SBCNEtIm**, respectively, in high yields. Properties of these four imidazolium‐based zwitterionic compounds were investigated with respect to question of their use as suitable precursors for Ionic Liquids. The structures of the compounds **SBMIm**, **SBEIm**, and **SBPIm** were determined by single‐crystal X‐ray diffraction. **SBMIm** and **SBEIm** crystallize both in the triclinic space group __P__$\bar{1}$, **SBMIm**: __a__ = 8.4454(6), __b__ = 8.4492(6), __c__ = 8.7532(7) Å, __α__ = 66.610(2), __β__ = 66.235(2), __γ =__ 70.625(2)°, __Z__ = 2, __R__1(__F__)/__wR__2(__F__^2^) = 0.0279/0.0832; **SBEIm**: __a__ = 8.4359(2), __b__ = 8.5900(2), __c__ = 8.6790(2) Å, __α__ = 73.487(2), __β__ = 71.228(1), __γ =__ 70.979(2)°, __Z__ = 2, __R__1(__F__)/__wR__2(__F__^2^) = 0.0333/0.0820; **SBPIm** with monoclinic

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Author

Tim Peppel; Prof. Dr. Martin Köckerling

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0372-7874)

Published

2011

Language

EN

Field

Chemistry (Physical Sciences)