Pt(II)-Decorated Covalent Organic Framework for Photocatalytic Difluoroalkylation and Oxidative Cyclization Reactions

A new covalent organic framework (COF) based on imine bonds was assembled from 2-(4-formylphenyl)-5-formylpyridine and 1,3,6,8-tetrakis(4-aminophenyl)pyrene, which showed an interesting dual-pore structure with high crystallinity. Postmetallation of the COF with Pt occurred selectively at the N donor (imine and pyridyl) in the larger pores. The metallated COF served as an excellent recyclable heterogeneous photocatalyst for decarboxylative difluoroalkylation and oxidative cyclization reactions.

Automated summary

A new COF based on imine bonds with dual-pore structure and high crystallinity was successfully synthesized, and selectively metallated with Pt on the N donor in the larger pores. The metallated COF showed excellent performance as a recyclable heterogeneous photocatalyst for decarboxylative difluoroalkylation and oxidative cyclization reactions.