Cu/CuxOy NPs architectured COF: a recyclable catalyst for the synthesis of oxazolidinedione via atmospheric cyclizative CO2 utilization

Abstract

The present study describes the favourable construction of a crystalline covalent organic framework (COF) with exceptional surface area, tunable pore size and huge CO₂ capture efficiency to facilitate a novel multicomponent cyclization by introducing CO₂ into extremely reactive organic skeletons. In the presence of a catalytic Cu/Cu_xO_y NP-loaded COF, several 2-bromo-3-alkylacrylic acids combined with several amine derivatives and CO₂ (0.1 MPa) are converted to the desired oxazolidinediones in excellent yields (up to 96%) under alkali-free conditions and ambient temperature.