The selective N-formylation and N-methylation of amines with carbon dioxide (CO2) catalyzed by methyltriphenylphosphonium methylcarbonate and tuned by polymethylhydrosiloxane or trimethoxysilane as reducing agents is reported.
The sustainable catalytic transformation of carbon dioxide into fine chemicals with high efficiency is a global challenge as although CO2 is an abundant, nontoxic, and sustainable carbon feedstock but also a critical factor for the Greenhouse Effect.
We have constructed a highly crystalline 2D imine-linked Co(II)-incorporated Tp-TH COF catalyst (Co(II)@Tp-TH) with a band gap energy of 2.4 eV to serve as a stable and effective porous photocatalyst for the synthesis of N-formylated amines.
The homogeneous and heterogeneous catalyst systems applied in N-formylation reaction of amines and CO2 reaction from both homogeneous and heterogeneous systems are summarized.
Supported Pt NP catalysts modified with basic [Nb6O19]8− facilitated the N-formylation reaction of amines using CO2 as a carbon source.