Process for producing 1,9-nonanedial

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

C - Chemistry, Metallurgy

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C

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C07C 43/303 (2006.01) C07C 43/317 (2006.01) C07C 45/49 (2006.01) C07C 45/80 (2006.01) C07C 45/81 (2006.01) C07C 45/82 (2006.01) C07C 45/85 (2006.01) C07C 47/12 (2006.01)

Patent

CA 1194498

ABSTRACT OF THE DISCLOSURE 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 sodium, potassium or lithium salt of m-(diphenylphosphino)bezenesulfonic acid, extracting l,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.

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