Process for the production of 1,12-dodecanoic diacid

Details Process for the production of 1,12-dodecanoic diacid Process for the production of 1,12-dodecanoic diacid

1987-07-27

1988-03-22

Lone, Werren B.

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

Organic compounds

Carboxylic acids and salts thereof

502152, 502155, 502166, 502213, 502222, 502229, 560190, 562522, 562590, C07C 51235

Patent

active

047330074

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.

REFERENCES:
patent: 4148822 (1979-04-01), Ogawa et al.
patent: 4404397 (1983-09-01), Daniel
patent: 4410725 (1983-10-01), Decker et al.
patent: 4613694 (1986-09-01), Rossi et al.
patent: 4634795 (1987-01-01), Bar-Tana

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