The selective formation of carbon-carbon bonds is a cornerstone of organic synthesis . In this respect, the carbonyl group is particularly relevant due to its dual role. It can either react as electrophilic component, or serve as a pronucleophile at the α-carbon in their enolized form to react with a broad range of external electrophiles . In comparison to conventional nucleophiles or electrophiles, non-activated olefins exhibit much lower reactivity and generally require a transition-metal catalyst to engage in reaction with carbonyl compounds . Over the past decade, the transition from precious metals to catalysts based on earth-abundant metals made impressive progress, and especially nickel became a powerful tool due to its lowcost and unique reactivity profiles . For instance, low-valent nickel (0) complexes promote reductive couplings between carbonyl compounds and unsaturated carbon-carbon bonds utilizing the electrophilic nature of the carbonyl group (Fig. ). These transformations proceed through an oxidative cyclization mechanism and subsequent hydride transfer from an external hydride source . A variety of 1,3-dienes, allenes, enynes, alkynes can serve as the nucleophilic component leading to the formation of alkylated or alkenylated secondary and tertiary alcohols . A range of chiral ligands were used for enantioselective transformations . In stark contrast, examples for the complementary α-functionalization of carbonyls with olefins under nickel(0) catalysis are scarce despite being highly desirable synthetic tools 17 , 18 , 19 , 20 . Unlike the above-described reductive couplings amenable to a variety of C-C π-unsaturations, the redox-neutral ketone α-functionalizations so far very limited and only observed with selected 1,3-dienes . The transformations require either harsh conditions and/or the addition of base or water/alcohols for a reactive catalyst system. These eventually lead to epimerization of sensitive stereocenters and thus pose challenges for diastereo-and/or enantioselective processes. Thus, a more general approach is desirable and would be of a high synthetic value.