公开(公告)号：CA2127816A1

公开(公告)日：1995-02-01

申请号：CA2127816

申请日：1994-07-12

Applicant: HOECHST AG

Inventor： STELZER OTHMAR ,  HERD OLIVER ,  WEFERLING NORBERT

IPC: C07F9/50 ,  C07F9/58

Abstract: Secondary and tertiary phosphines and processes for their preparation The invention relates to secondary and tertiary phosphines of the formula in which R is hydrogen, an aryl or benzyl group or a straight-chain or branched alkyl group, n is 1 or 2 and M is potassium or sodium. These phosphines are prepared by reacting either alkali metal salts of fluorobenzene-2,4-disulfonic acid with phosphine or with primary or secondary phosphines, or secondary phosphines of the type HP¢C6H3-2,4-(SO3M)2!2 with a compound RX in which R is an alkyl, aryl or benzyl group and X is a halogen, in an aprotic solvent in the presence of at least stoichiometric quantities of a solid, powdered alkali metal hydroxide at temperatures of from 0 to 100.degree.C.