Highly efficient synthesis of cyclic ureas from CO2 and diamines by a pure CeO2 catalyst using a 2-propanol solventElectronic supplementary information (ESI) available. See DOI: 10.1039/c3gc40495a
Pure cerium oxide (CeO 2 ) acts as an effective and reusable heterogeneous catalyst for direct synthesis of cyclic ureas from CO 2 and diamines even at a low CO 2 pressure of 0.3 MPa. 2-Propanol is the most preferable solvent to provide good selectivity. The system composed of a CeO 2 catalyst and a...
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