Abstract
Sulfuration or deoxygenation? Competitive transformations of the title imidazole N-oxides into respective masked thiourea analogs or into the parent heterocycle in the reaction with 2,2,4,4-tetramethylcyclobutane-1,3-dithione are presented. The influence of an electron-withdrawing substituents in combination with the steric hindrance of neighboring groups onto reaction outcome is discussed.
GRAPHICAL ABSTRACT
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ACKNOWLEDGMENTS
Financial support by the Rector of the University of Łódź (Grant no. 505/712/R) and technical assistance in the laboratory work by Mrs Małgorzata Celeda, University of Łódź, are gratefully acknowledged.