Metal ligand cooperativity in the direct carboxylation and esterification of terminal alkynes by Cu-CNC complexes bearing 2,6-lutidine linkers.

ABSTRACT: CO₂ utilization is a significant and emerging field in catalysis, playing a crucial role in reducing atmospheric CO₂ and mitigating climate change. In this work, we report on Cu(i) complexes that utilize atmospheric CO₂ for the direct carboxylation and esterification of terminal alkynes. The Cu(i) complexes bear ligands of the type 2,6-bis(3-alkyl/arylimidazol-2-ylidene) methylpyridine I(R)^{C^N^C}, where R = ⁱPr, Me, 2,6-ⁱPr₂Ph (Dipp), 2,4,6-Me₃Ph (Mes), and 4-CF₃Ph. While copper-catalyzed carboxylation reactions are not unprecedented, this work presents the first example of metal ligand cooperativity (MLC) through a dearomatization-aromatization process used in the direct carboxylation of term

SUBMITTER: Back N 

PROVIDER: S-EPMC12809709 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature