Application of Covalent Organic Framework Materials as Heterogeneous Ligands in Organic Synthesis

Covalent organic frameworks (COFs) are a new type of crystalline porous material composed of light elements (C, O, N, B, etc.) through covalent bonds.Because of its high specific surface area, high porosity, and high crystallinity, COFs have advantages that other traditional materials can not match.By using COFs as heterogeneous ligands to support metal ions, different types of catalytic reactions can be realized, and the catalyst can be reused.The latest research progress of COFs as heterogeneous ligands supporting different metal ions to catalyze various organic reactions is summarized.