ZIF-8-Nanocrystalline Zirconosilicate Integrated Porous Material for the Activation and Utilization of CO in Insertion Reactions.

The conversion of CO to useful chemicals, especially to atom economical products, is the best approach to utilize an excess of CO present in the atmosphere. In this study, a metal-organic framework (ZIF-8) is integrated with nanocrystalline zirconosilicate zeolite to develop an integrated porous catalyst for CO insertion reactions. The catalyst exhibits excellent activity for the CO insertion reaction of epoxide to produce cyclic carbonate in neat condition without the addition of any co-catalyst. The catalyst is stable and recyclable during the cyclic carbonate synthesis. Further, the catalyst also exhibits very good activity in another CO insertion reaction to produce quinazoline-2,4(1H, 3H)-dione.