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 olefin in the presence of a rhodium catalyst and oxidation with oxygen of the aldehyde which is thus formed wherein 1,9-decadiene is hydroformylated in the presence of hydridotris-triphenylphosphine-rhodium-carbonyl combined with triphenylphospine and/or triphenylphosphite, and the 1,12-dodecanedialdehyde which was thus formed is oxidized with oxygen in the presence of inorganic or organic Co(II) salts.
Claims12
A process for the production of 1,12-dodecanoic diacid comprising selecting 1,9-decadiene as an olefin and hydroformylating said olefin in the presence of a rhodium complex catalyst to form the corresponding aldehyde in a reaction mixture, said rhodium complex being hydridotris-triphenylphosphine-rhodium-carbonyl combined with triphenylphosphine and/or triphenylphosphite, and thereafter oxidizing the 1,12-dodecane-dialdehyde which is thus formed with oxygen in the presence of an inorganic or organic Co(II) salt.
Dependencies are inferred from the claim text.