Crystal structure and Hirshfeld surface analysis of 1,2-ethylene-bis (para-methyl pyridinium) dichromate as a new selective and mild agent in oxidation of alcohols

Abstract

1,2-Ethylene-bis(para-methyl pyridinium) dichromate, (C 14 H 18 N 2) [Cr 2 O 7 ], is used as a new oxidizing agent in conversion of some alcohols to their corresponding carbonyl compounds in CH 3 CN solvent and also under solvent-free conditions. In both procedures, high conversion percentages are observed. However, a much shorter reaction time is achieved in solvent-free conditions. For allylic alcohols, the C = C bond is not oxidized and the examined saturated alcohol in this work (i.e. cyclo-hexanol) remains intact, which illustrates the mild nature of reagent used. The structure of the reagent is investigated by single-crystal X-ray diffraction analysis. The C–H · · · O and O · · · π interactions are the most important features of crystal packing, which are visualized by the Hirshfeld surface map. © TÜBİTAK