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

摘要

The invention relates to novel sulfonated diphosphines of the formula in which Ar is m-C6H4SO3M, M is hydrogen, ammonium, a monovalent metal or the equivalent of a polyvalent metal, Ph is the phenyl radical, m is identical or different and has the value 1 or 2 and n is identical or different and is 0, 1 or 2, to their preparation and to the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems for the hydroformylation of olefins and olefinically unsaturated compounds.