Effects of Mixed\nMetal Oxide Catalysts on the Synthesis\nof Cyclic Carbonates from Epoxides under Atmospheric CO<sub>2</sub> Pressure

One use of CO<sub>2</sub> as a starting material in organic\ntransformations\nis in the synthesis of cyclic carbonates and polycarbonates. Due to\nthe low reactivity of CO<sub>2</sub>, this transformation must be\ncarried out in the presence of an efficient catalyst. Although several\ncatalytic systems have been developed in the past decade, reducing\nthe CO<sub>2</sub> pressure at which the reaction is carried out remains\none of the main challenges of the process. In this context, in the\npresent work, we describe the catalytic activity of mixed metal oxides\nin the synthesis of cyclic carbonates from CO<sub>2</sub> (1 atm)\nand epoxides at 70 °C. Using these materials as catalysts represents\nsignificant benefits since they are very stable, cost-effective, and\ncan be reused in several reaction cycles.