Identification of novel chemical structures of sulfo-imidazolium zwitterionic-type salt basis on 2D NMR analysis

Document Type

Article

Publication Date

1-1-2019

Abstract

The reaction of the equimolar mixture of imidazole and 1,4-butanesultone was performed at 90 °C in ethylbenzene for 12 h and the zwitterionic and ionic structures of the product investigated by the NMR analysis. The present work displayed the great importance of 2D NMR analysis on the structure elucidation of this sulfonic acid functionalized liquid salt. The results of NMR analysis demonstrate that 4-imidazole-1-yl-butane-1-sulfonic acid did not exist and really a mixture of zwitterionic and ionic compounds is produced.

Keywords

NMR analysis, Sulfo-functionalized liquid salt, Zwitterionic structure

Divisions

nanocat

Publication Title

Journal of Molecular Structure

Volume

1180

Publisher

Elsevier

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