Process for producing 1,9-nonanedial

Details Process for producing 1,9-nonanedial Process for producing 1,9-nonanedial

1983-02-25

1985-04-09

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 4550

Patent

active

045103321

ABSTRACT:
A process for producing 1,9-nonanedial which comprises hydroformylating 7-octen-1-al with a mixture of hydrogen and carbon monoxide in an aqueous sulfolane or 1,4-butanediol solution in the presence of a rhodium complex and the sodium, potassium or lithium salt of m-(diphenylphosphino)benzenesulfonic acid, extracting 1,9-nonanedial from the reaction mixture with a primary alcohol or a mixture of a primary alcohol and a saturated aliphatic hydrocarbon, and recycling the extraction residue containing the catalyst components to the 7-octen-1-al hydroformylation step.

REFERENCES:
patent: 4215077 (1980-07-01), Matsumoto
patent: 4248802 (1981-02-01), Kuntz
patent: 4275243 (1981-06-01), Saito et al.
patent: 4420640 (1983-12-01), Matsumoto et al.

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