Utilization of CO₂ as a C1 Building Block for Catalytic Methylation Reactions

Developing new synthetic approaches for benign CO₂ utilization is of current interest. In this respect, reductive alkylations using N- or C-based nucleophiles to give the corresponding methyl amines and (hetero)arenes are investigated intensively. Crucial points for such benign methylations are the choice of suitable homogeneous or heterogeneous catalyst systems. In this article, selective activation of the substrates and the use of acidic cocatalysts are highlighted.