Copper-Catalyzed Regioselective Silaboration of Aryl Allenes

Key Points

• This research aims to develop a copper-catalyzed method for the silaboration of aryl-substituted allenes to produce allylboronates.
• Utilized copper as a catalyst for the silaboration reaction.
• Employed silylborane reagent (PhMe₂Si-Bpin) for the reaction.
• Tested various aryl allenes with different electron-donating and withdrawing groups.
• Achieved allylboronate products in good to excellent yields, reaching up to 97%.
• Demonstrated high regio- and stereoselectivity in the produced compounds.
• Expanded the substrate scope of copper-catalyzed silaboration from alkyl to aryl allenes.

Abstract