Beilstein Journal of Organic Chemistry 2012-01-01

Synthesis of mesomeric betaine compounds with imidazolium-enolate structure.

Nina Gonsior, Fabian Mohr, Helmut Ritter

Index: Beilstein J. Org. Chem. 8 , 390-7, (2012)

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Abstract

The synthesis of a heterocyclic mesomeric betaine by quaternization reaction of 1-butylimidazole and tetrabromo-1,4-benzoquinone is presented. The structure was verified by means of X-ray single-crystal analysis, NMR and IR spectroscopy. Inclusion complexes of the heterocyclic mesomeric betaine with randomly methylated (1.8) β-cyclodextrin were investigated by UV-vis spectroscopy. Furthermore, the reaction conditions were applied to poly(vinylimidazole) and 1,4-bis(1H-imidazol-1-yl)butane to obtain functionalized polymer networks and condensate polymers, respectively.