Secondary and tertiary phosphines and processes for their prepar

Details Secondary and tertiary phosphines and processes for their prepar Secondary and tertiary phosphines and processes for their prepar

1997-03-20

1999-07-20

Killos, Paul J.

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

Organic compounds

Sulfonic acids or salts thereof

562 45, 546 21, 568 13, C07F 902

Patent

active

059257857

ABSTRACT:
The invention relates to secondary and tertiary phosphines of the formula ##STR1## 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 H.sub.3 -2,4-(SO.sub.3 M).sub.2 !.sub.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.

REFERENCES:
patent: 4483801 (1984-11-01), Sabot
patent: 5268479 (1993-12-01), Stelzer et al.
Angewandte Chemie, 105:1097-1099, (Jul., 1993); English Translation=Angewandte Chemie, International Edition (1993) 32:1058-1059 (copy enclosed).

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