Production of an isomeric mixture of secondary phosphines

Details Production of an isomeric mixture of secondary phosphines Production of an isomeric mixture of secondary phosphines

1980-09-24

1982-09-28

Sneed, Helen M. S.

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

Organic compounds

Phosphorus containing

C07F 950

Patent

active

043519601

ABSTRACT:
The invention relates to a process for making an isomeric mixture of secondary phosphines with the summation formula C.sub.20 H.sub.27 P. To this end, hydrogen phosphide is reacted with dicyclopentadiene in the presence of an agent yielding free radicals. More specifically, hydrogen phosphide and dicyclopentadiene are used in a molar ratio of 1 to at least 2 and the reaction is effected under a pressure of 5 to 90 bars. The mixture is used in the production of flotation aids and as an ingredient of catalytically active transition metal complexes.

REFERENCES:
patent: 2584112 (1952-02-01), Brown
patent: 2957931 (1960-10-01), Hamilton et al.

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