Interestingly, when cyclic enones were subjected to the reaction conditions, the corresponding βmethylated products were obtained instead of the anticipated cyclopropanes (Scheme 3). A variety of six-membered cyclic enones (1-4c), as well as five-and seven-membered variants (5-6c), were successfully methylated using this unprecedented electrochemical strategy. Investigation into this unexpected selectivity revealed that the strained structure of the cyclic substrates was a key factor, as linear enones did not yield the β-methylated products (19b). Control experiments further confirmed that the β-methylated products were not formed via degradation of the cyclopropane ring (Scheme S9). Notably, similar β-alkylation has been reported in cyclopropanation reactions and is often attributed to a carbene-mediated C─H insertion at the β-position of enones. Further studies are ongoing to fully elucidate the mechanistic factors driving this selectivity. The formation of βmethylated enones is particularly noteworthy, as, to the best of our knowledge, only two precedents for such a transformation in a single-step procedure exist in the literature, which would otherwise require a Saegusa-Ito-type reaction sequence. Scheme 3. Scope of the flow electroreductive nickel-catalyzed methylation of cyclic enones. Reactions performed on 0.2 mmol scale. All yields are those of isolated products (see Supplementary Information for experimental details).