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,...

C - Chemistry, Metallurgy

07

F

260/613.9

C07F 9/28 (2006.01) C07F 9/50 (2006.01)

Patent

CA 1153015

PRODUCTION OF AN ISOMEREC MIXTURE OF SECONDARY PHOSPHINES, AND USE OF THE MIXTURE SO MADE ABSTRACT OF THE DISCLOSURE: The invention relates to a process for making an isomeric mixture of secondary phosphines with the summation formula C20H27P. To this end, hydrogen phosphide is reacted with dicyclopentadiene in the presence of an agent yielding free radicals. More specifically, hydrogen phosphide and dicyc- lopentadiene 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 transi- tion metal complexes.

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