SULFONATED 2,2'-BIS(DIPHENYLPHOSPHINOMETHYL)-1,1'BINAPHTHALENES, PROCESS FOR THEIR PREPARATION AND THEIR USE IN A PR ...

摘要

The invention concerns novel sulphonated diphosphines of the general formula where Ar is m-C6H4SO3M, M is hydrogen, ammonium, a monovalent metal or the equivalent of a multivalent metal, pH is phenyl, m is identical or different and has the value 1 or 2, and n is identical or different and denotes 0.1 or 2, their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as constituent of water-soluble catalyst systems for hydroformylating olefins and olefinically unsaturated compounds.