Amino-functionalized organic polymer loaded with highly dispersed CuI for efficient catalytic conversion of CO2 with PA

The conversion of CO 2 into high value-added chemicals through efficient catalysis is an ideal strategy to reduce atmospheric CO 2 pollution and achieve carbon neutrality . Therefore, amino-functionalized organic polymer Cu@Co-PIL-N 4 loaded with highly dispersed CuI as a novel catalyst was developed. The functionalization of the surface and the high dispersion of the active phase integrate CO 2 capture and conversion into one catalytic system. The locally enriched CO 2 is converted to the easily activated carbon-oxygen negative ion by the action of primary or secondary amines. Thus, it is easier to achieve efficient preparation of α-alkylidene cyclic carbonates (STY = 20.8 h −1 ) by CO 2 carboxylative cyclization under mild conditions (25 °C, CO 2 pressure of 1 bar). The addition of a small amount of water to the cyclization system boosted domino reaction to convert the α-alkylidene cyclic carbonates to α-hydroxy ketones. The domino reaction also exhibited efficient catalytic activity and outstanding regioselectivity. In addition, the Cu@Co-PIL-N 4 catalyst exhibited excellent substrate expansion and cyclic regeneration for both reactions. This work promises great significance for further developing cost-effective and high-performance catalysts for the chemical conversion of CO 2 .