Sulfonated 2,2'-bis (diphenylphosphinomethyl)-1,1'-binaphthalenes, process for their preparation and their use in a process for the hydroformylation of olefinically unsaturated compounds
AssigneeHoechst Aktiengesellschaft
InventorsWolfgang A. Herrmann, Rainer Manetsberger, Helmut Bahrmann, Christian Kohlpaintner, Peter Lappe
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Abstract
Sulfonated diphosphines of the formula ##STR1## in which Ar is m-C.sub.6 H.sub.4 --SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
Claims1
A sulfonated 2,2'-bis(diphenylphosphinomethyl)-1,1'-binaphthalene of the formula ##STR5## in which Ar is m-C.sub.6 H.sub.4 --SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or a chemical equivalent of a polyvalent metal;
- Ph is phenyl radical, m, which may be the same or different, is 1 or 2, and n, which may be the same or different, is 0, 1, or 2.
Dependencies are inferred from the claim text.