A Cu-salen-based conjugated microporous polymer catalyst for N-formylation of CO2 under mild conditions

Shuai Gu; Junxi Shou; Anqi Chen; Wenhua Yu; Ruiren Tang; Chunyue Pan; Juntao Tang; Guipeng Yu

doi:10.1039/d4cc04823g

A Cu-salen-based conjugated microporous polymer catalyst for N-formylation of CO₂ under mild conditions

Chem Commun (Camb). 2025 Jan 13. doi: 10.1039/d4cc04823g. Online ahead of print.

Authors

Shuai Gu¹, Junxi Shou¹, Anqi Chen¹, Wenhua Yu¹, Ruiren Tang¹, Chunyue Pan¹, Juntao Tang¹, Guipeng Yu¹

Affiliation

¹ Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China. gilbertyu@csu.edu.cn.

PMID: 39803997
DOI: 10.1039/d4cc04823g

Abstract

A heterogeneous salen-based conjugated microporous polymer catalyst (CMP@Cu-salen) is prepared by a one-pot method for N-formylation of amines with CO₂. The uniformly dispersed Cu-salen site and porous structure facilitates the enrichment of CO₂ and transfer of substrates and the transformation. Our CMP@Cu-salen shows excellent catalytic performance (conversion: 99%, selectivity: 90%) for formylation of N-methylaniline under mild conditions (0.1 MPa, 40 °C), outperforming most existing heterogeneous catalysts. Additionally, it retains high catalytic activity even after three consecutive cycles. This work provides insight into the potential value of CMP@Cu-salen in CO₂ conversion.