Process for preparing diarylalkylphosphines

Details Process for preparing diarylalkylphosphines Process for preparing diarylalkylphosphines

C - Chemistry, Metallurgy

07

F

C07F 9/50 (2006.01) C07F 9/547 (2006.01) C25B 3/04 (2006.01)

Patent

CA 2150207

The invention relates to a process for preparing phosphines Image (I) where, for example R1 is (C1-C10)alkyl, (C3-C10)cycloalkyl, C(YZ)aryl Y, Z is (C1-C4)alkyl, hydrogen, Aryl is phenyl, naphthyl, anthracenyl, phenanthrenyl, or biphenyl, binaphthyl and R2, R3 are, independently of one another, phenyl, naphthyl or anthracenyl, by reacting a diarylphosphine Image (II) where X is bromine, chlorine, fluorine, (C1-C4)alkoxy, O-phenyl, with a reducing agent and a quaternary ammonium compound Image (III) where A is an anion of an organic or inorganic acid.

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