Process for the production of 1,12-dodecanoic diacid
AssigneeDegussa AG
InventorsJuan Andrade, Klaus Koehler, Guenter Prescher
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Abstract
A process for the production of 1,12-dodecanoic diacid by hydroformylating an unsaturated carboxy compound in the presence of a rhodium catalyst and oxidation of the aldehyde with oxygen, wherein undecyl-10-ene-acid is hydroformylated in the presence of hydridotristriphenylphosphine-rhodium-carbonyl combined with triphenylphosphine and/or triphenylphosphite, and the 11-formyl undecanioc acid which is thus formed is oxidized with oxygen in the presence of inorganic and organic Co(II) salts.
Claims12
A process for the production of 1,12-dodecanoic diacid comprising selecting undecyl-10-ene-acid as an unsaturated carboxy compound and hydroformylating said compound in the presence of a rhodium complex catalyst to form the corresponding aldehyde in a reaction mixture, said catalyst being hydridotris-triphenylphosphine-rhodium-carbonyl combined with triphenylphosphine and/or triphenylphosphite, and thereafter oxidizing the 11-formyl undecanoic acid which is thus formed with oxygen in the presence of an inorganic or organic Co(II) salt.
Dependencies are inferred from the claim text.