Abstract

The iridium(III) complex [Ir(H)(CF3SO3)(NSiN)(coe)] (NSiN=bis(pyridine-2-yloxy)methylsilyl, coe=cyclooctene) has demonstrated to be an active catalyst for the solvent-free and selective hydrosilylation of CO2 with HSiMe(OSiMe3)2 to afford the corresponding silyl formate, namely HC(O)OSiMe(OSiMe3)2. The activity of this catalytic system depends on both parameters the reaction temperature and the CO2-pressure. This work includes a kinetic study at variable temperature (from 25°C to 75°C) and pressure (from 1bar to 8bar) together with a kinetic modeling of this catalytic reaction. The best catalytic performances have been achieved at 75°C and 8bar of CO2.

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