Preparation of monocarboxylated cyclododecatriene derivatives

Details Preparation of monocarboxylated cyclododecatriene derivatives Preparation of monocarboxylated cyclododecatriene derivatives

C - Chemistry, Metallurgy

07

C

260/479.1

C07C 69/74 (2006.01) B01J 31/12 (2006.01) B01J 31/16 (2006.01) B01J 31/22 (2006.01) C07C 67/30 (2006.01) C07C 67/36 (2006.01) C07C 67/38 (2006.01) C08G 69/14 (2006.01)

Patent

CA 1072979

THE PREPARATION OF MONOCARBOXYLATED CYCLODODECATRIENE DERIVATIVES (D#73,518 _F) ABSTRACT OF THE DISCLOSURE This invention concerns an improved process for preparing monocarboxylated derivatives of cyclododecatriene by the catalytic addition of carbon monoxide using certain homogeneous, experimentally selected, three component, ligand-stabilized, platinum(II) or palladium(II)-Group IVB metal halide catalyst compositions. Optionally, in the case of certain ligand-stabi- lized, platinum(II) halide-Group IVB metal halide catalyst complexes, the above carboxylated reaction mixture contai- ning alkyl cyclododecadlene carboxylate can be purged of carbon monoxide, hydrogen can be passed into the reaction mixture, the reaction mixture pressurized in a hydrogen atmosphere and the carbon-to-carbon double bonds in said alkyl cyclodoecadiene carboxylate intermediate reduced. I

223780

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