In Situ Synthesis of Cu-CP by Cleavage of the C–N Bond for CO ₂ Fixation into Oxazolidinones through Aziridine/Propargylamine under Ambient Conditions

The conversion of CO 2 into high-value chemicals under mild conditions offers the advantages of atom economy, bond-formation efficiency, and product complexity. Among the transformations, coupling reactions of CO 2 with arizidine/propargylamine to produce oxazolidinones represent an important and attractive method to utilize CO 2 . Herein, we report two Cu-CP catalysts ( Cu-CP-1 and Cu-CP-2 ) through flexible imidazole-containing ligands for the synthesis of oxazolidinones from aziridines/propargylamine and CO 2 under ambient conditions (room temperature, 1 atm of CO 2 ). Notably, Cu-CP-1, prepared via a C–N cleavage reductive strategy, exhibits a significantly higher catalytic activity. The planar four-coordinated Cu centers play an important role in the catalysis.