Process for the preparation of sulfonated aryl phosphines

Details Process for the preparation of sulfonated aryl phosphines Process for the preparation of sulfonated aryl phosphines

C - Chemistry, Metallurgy

07

F

260/502.6

C07F 9/50 (2006.01)

Patent

CA 1190562

Abstract of the Disclosure A process for the preparation of mono, di or trisulfonated aryl phosphines whereby triaryl phosphine is sulfonated with oleum at 0 to 40°C. After dilution of the reaction product with water, the sulfonated triaryl phosphine is extracted with an amine dissolved in an organic solvent; both the amine and organic solvent being insoluble in water. From the organic phase the sulfonated phosphine is transferred to the aqueous phase by treatment with an aqueous solution of a base. - 1 -

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