Nickel Catalyzed Carbonylation/Carboxylation Sequence via Double CO 2 Incorporation.

A carbonylation-carboxylation synthetic sequence, via double CO ₂ fixation, is described. The productive merger of a Ni-catalyzed cross-electrophile coupling manifold, with the use of AlCl ₃ , triggered a cascade reaction with the formation of three consecutive C-C bonds in a single operation. This strategy traces an unprecedented synthetic route to ketones under Lewis acid assisted carbon dioxide valorization. Computational insights revealed a unique double function of AlCl ₃ , and labeling ( ¹³ CO ₂ ) experiments validate the genuine incorporation of CO ₂ in both functional groups.