Synthesis of diphosphinoarenes

Details Synthesis of diphosphinoarenes Synthesis of diphosphinoarenes

C - Chemistry, Metallurgy

07

F

C07F 9/50 (2006.01) C07F 9/53 (2006.01) C07F 9/547 (2006.01)

Patent

CA 2310353

This invention provides a process for the preparation a diphosphinoarene, a corresponding phosphine oxide, or a corresponding phosphine sulphide, and derivatives thereof, which comprises reacting a primary or secondary phosphine, phosphine oxide, or phosphine sulphide with an aryl compound bearing two leaving groups attached to two different carbon atoms of the arylene ring system, in the presence of a catalyst comprising a Group VIIIa metal. Diphosphinoarenes may be used as ligands for metal catalysts, as solvent extractants for certain metals, and as flame retardants in polyester and polyurethane applications.

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