Synthesis of Perfluoroalkylated Carboranes by Cross-metathesis of Allylcarboranes and Perfluoroalkylpropenes

Abstract

A ruthenium complex (Hoveyda-Grubbs second-generation) catalyzed cross-metathesis of allylcarboranes with perfluoroalkylpropenes under standard reaction conditions furnished perfluoroalkylated carboranes in good isolated yields (31-53%). The reaction proceeded with various carboranes and carborane sandwich complexes bearing the bridging allylthioether moiety.

This method constitutes a simple and versatile procedure for the preparation of fluorophilic carboranes.

Keywords

• perfluoroalkylated carboranes
• cross-metathesis
• allylcarboranes
• perfluoroalkylpropenes
• ruthenium