Abstract

Constant current electrolysis of sodium octanoate produced Kolbe and non-Kolbe products. Dimer is the major product at Pt anode and non-Kolbe products were formed on graphite anode. Influence of quantity of electricity, current density, and nature of electrode was studied. Under optimized experimental conditions, butanoate, perfluorooctanoate, and perfluorobutanoate were electrolyzed. Major and minor products were identified based on GC–MS spectra. Isomeric products are due to cationic rearrangement by 1,2-hydride shift and selectivity among them are also rationalized. Anodic decarboxylation of perfluorobutanoate and perfluorooctanoates gave Kolbe dimer on platinum electrode. The role of solvent and criteria for choice of radical or cationic pathway has been discussed.

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