Figure 5: Possible reaction mechanisms for typical carboxylation reactions with CO2.
From: Using carbon dioxide as a building block in organic synthesis
(a) Reaction mechanism for Cu-catalysed carboxylation reactions of organoboron compounds. (b) Reaction mechanism for Ni-catalysed carboxylation reactions of benzyl halides. (c,d) Directing group-assisted carboxylation of C-H bonds.
