Layered Copper-Metallated Covalent Organic Frameworks for Huisgen Reactions

Covalent organic frameworks (COFs) are porous materials formed through condensation reactions of organic molecules via the formation of dynamic covalent bonds. Among COFs, those based on imine and beta-ketoenamine linkages offer an excellent platform for binding metallic species such as copper to design efficient heterogeneous catalysts. In this work, imine- and beta-ketoenamine-based COF materials were modified with catalytic copper sites following a metallation method, which favored the formation of binding amine defects. The obtained copper-metallated COF materials were tested as heterogeneous catalysts for 1,3-dipolar cycloaddition reactions, resulting in high yields and recyclability.

Automated summary

Copper-metallated COF materials were synthesized through modification with catalytic copper sites, resulting in efficient heterogeneous catalysts. These materials showed high yields and recyclability in 1,3-dipolar cycloaddition reactions.