Biphasic platinum catalyzed hydrosilylation of terminal alkenes in TAAILs

• The new catalytic system contains commercially available platinum salts in recently developed TAAILs.
• Hydrosilylation in air at 50 °C.
• Excellent selectivities and turn-over values.
• High chemoselectivity.
• Full recovery of the catalyst.

A new catalytic system, based on tailored aryl alkyl ionic liquids and commercially available platinum sources, was developed for the hydrosilylation of alkenes in a biphasic mixture, which allows for easy recovery of the expensive metal catalyst. Commercially available platinum compounds were dissolved in recently developed TAAILs (Tunable Aryl Alkyl Ionic Liquids), which allow the reaction to be carried out at 50 °C in air. No inert gas atmosphere is required and no platinum black is observed during the reaction. The biphasic catalysis leads to excellent selectivities and turn-over values as well as full recovery of the catalyst. The catalytic system shows the known chemoselectivity for terminal alkenes.

Platinum catalyzed hydrosilylation in TAAILs.Figure optionsDownload as PowerPoint slide