Process for making tertiary alkylphosphines

Details Process for making tertiary alkylphosphines Process for making tertiary alkylphosphines

1987-08-14

1988-07-12

Shaver, Paul F.

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

Organic compounds

Phosphorus containing

C07F 950

Patent

active

047571560

ABSTRACT:
Tertiary alkylphosphines of the general formula R.sub.3 P, in which R stands for identical or different, linear, unsubstituted alkyl groups having 3 to 20 carbon atoms, with the proviso however that one of the alkyl groups may be a secondary butyl group, are made by reacting hydrogen phosphide PH.sub.3 with an appropriate alkene or alkenes in stoichiometric excess, if desired, at elevated temperature and under increased pressure in contact with a radical-yielding agent. 2,2'-azobis-(2-methylbutyronitrile) is used as the radical-yielding agent in the absence of whatever alien solvent.

REFERENCES:
patent: 2584112 (1952-02-01), Brown
patent: 2803597 (1957-08-01), Stiles et al.
patent: 2822376 (1958-02-01), Hechenbleikner et al.
patent: 4073810 (1978-02-01), Hestermann et al.
patent: 4163760 (1979-08-01), Elsner et al.
patent: 4324919 (1982-04-01), Elsner et al.
Rauhut et al, "The Free Radical Addition of Phosphines to Unsaturated Compounds", Journal of Organic Chemistry (1961) vol. 26, pp. 5138-5145.

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