C OLEFIN HYDROFORMYLATION CATALYST, METHOD FOR PREPARATION THEREOF, AND A PROCESS FOR PRODUCTION OF ALDEHYDES C Russian patent published in 2008 - IPC B01J37/04 B01J31/06 B01J31/18 C07C47/02 C07C45/50 

FIELD: organic synthesis catalysts.

SUBSTANCE: invention relates to synthesis of C₇₊-aldehydes from C₆₊-olefins, carbon monoxide, and hydrogen via hydroformylation reaction and to preparation of catalyst used in this reaction. Olefin hydroformylation catalyst contains complex compound of rhodium with polymeric nitrogen-containing ligand including phosphorus-containing fragments. Each of these fragments contains organic radicals, at least one of which is linked to nitrogen atom of polymeric nitrogen-containing ligand and phosphorus atom is in the form of Ph(III). Catalyst preparation consists in that nitrogen-containing polymer is subjected to reaction in organic solvent with Ph(III) compound including organic radicals, of which at least one radical includes group -C(O)OH. Thus obtained product is then subjected to reaction with rhodium compound and organic solvent is removed.

EFFECT: increased and preserved specific activity and regioselectivity of recycled catalyst and reduced pressure in aldehyde production process.

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