Process for the preparation of sulfonated arylphosphines

Details Process for the preparation of sulfonated arylphosphines Process for the preparation of sulfonated arylphosphines

1994-06-23

1995-09-19

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonic acids or salts thereof

C07C30932

Patent

active

054516986

ABSTRACT:
The sulfonation of arylphosphines, i.e. mono-, di-, oligo- and polyphosphines, which contain at least one aromatic radical capable of being sulfonated, is carried out in the presence of a Lewis acid at 0.degree. to 80.degree. C. The process avoids side-reactions, in particular the formation of phosphine oxides. In treating the sulfonation mixture, the Lewis acid can be removed together with the sulfuric acid.

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