Solvent-free iridium-catalyzed CO2hydrosilylation: experiments and kinetic modelingElectronic supplementary information (ESI) available. See DOI: 10.1039/c4cy00815d

Autor: Jaseer, E. A., Akhtar, Muhammad N., Osman, Mogahid, Al-Shammari, A., Oladipo, Habeebllah B., Garcés, Karin, Fernández-Alvarez, Francisco J., Al-Khattaf, Sulaiman, Oro, Luis A.
Zdroj: Catalysis Science & Technology; 2014, Vol. 5 Issue: 1 p274-279, 6p
Abstrakt: The iridium(iii) complex [Ir(H)(CF3SO3)(NSiN)(coe)] (NSiN = bis(pyridine-2-yloxy)methylsilyl, coe = cyclooctene) has been demonstrated to be an active catalyst for the solvent-free hydrosilylation of CO2with 1,1,1,3,5,5,5-heptamethyltrisiloxane (HMTS) under mild reaction conditions (3 bar). The activity of this catalytic system depends on the reaction temperature. The best catalytic performance has been achieved at 75 °C. A kinetic study at variable temperature (from 25 °C to 75 °C) and constant pressure (3 bar) together with kinetic modeling has been carried out. The results from such a study show an activation energy of 73.8 kJ mol−1for the process.
Databáze: Supplemental Index