“…CO 2 is non-toxic and can work as an electrophile in the reaction of anion species to give carboxylic acids with one carbon elongation. Electrocarboxylation has been described for a large number of substrate types, including ketones, 7,8 alkynes, 9 olefins, 10,11 alkyl halides, 12 and heterocyclic compounds. 13,14 Electrochemical carboxylation of phenyl-substituted alkenes has been reported by several workers, however, a mixture of mono-and dicarboxylated acids has been obtained, 15,16 and carboxylic acids have only been formed in low conversions by using a nickel(II) catalyst 17 or expensive Pt electrode.…”