Recent Advances in C(sp)-C(sp) and C(sp)-C(sp) Bond Formation through Cathodic Reactions: Reductive and Convergent Paired Electrolyses.

The formation of C(sp)-C(sp) and C(sp)-C(sp) bonds is one of the major research goals of synthetic chemists. Electrochemistry is commonly considered to be an appealing means to drive redox reactions in a safe and sustainable fashion and has been utilized for C-C bond-forming reactions. Compared to anodic oxidative methods, which have been extensively explored, cathodic processes are much less investigated, whereas it can pave the way to alternative retrosynthetic disconnections of target molecules and to the discovery of new transformations. This review provides an overview on the recent achievements in the construction of C(sp)-C(sp) and C(sp)-C(sp) bonds via cathodic reactions since 2017. It includes electrochemical reductions and convergent paired electrolyses.