Process for the preparation of aldehydes employing catalyst comp

Details Process for the preparation of aldehydes employing catalyst comp Process for the preparation of aldehydes employing catalyst comp

1998-07-09

2000-02-01

Geist, Gary

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

Organic compounds

Oxygen containing

568451, 502166, C07C 4550

Patent

active

060205326

ABSTRACT:
A process for preparing aldehydes by hydroformylating olefinically unsaturated compounds in the presence of a water-insoluble catalyst composition comprising rhodium complexes containing diphosphine ligands, wherein the diphosphine ligands present are compounds of the formula (I) ##STR1## wherein R.sup.1 is selected from the group consisting of carboxylate (COO.sup.-), sulfonate (SO.sub.3.sup.-), phosphonate (PO.sub.3.sup.2-) and 2-anmino ethtanebisphosphonate, R.sup.2 is selected from the group consisting of a straight-chain alkylene of 1 to 8 carbon atoms, an oxygen-containing alkylene of 2 to 6 carbon atoms, cycloalkylene of 3 to 10 carbon atoms and a member of the Formulae II, III, IV or v ##STR2##

REFERENCES:
patent: 5174899 (1992-12-01), Bahrmann et al.
patent: 5347045 (1994-09-01), Hermann et al.

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