Process for the preparation of alkyl nonadienoate esters

Details Process for the preparation of alkyl nonadienoate esters Process for the preparation of alkyl nonadienoate esters

C - Chemistry, Metallurgy

07

C

260/291, 252/91,

C07C 69/587 (2006.01) B01J 31/18 (2006.01) B01J 31/24 (2006.01) C07F 15/00 (2006.01)

Patent

CA 1186689

ABSTRACT OF THE DISCLOSURE In the process for reacting mixture of 1,3-buta- diene, carbon monoxide and a monoalkanol of the general formula ROH in which R is a straight or branched chain alkyl group of from 1 to about 12 carbon atoms in the presence of, as catalyst, a palladium-ligand complex which comprises (a) a member selected from the group consisting of zerovalent palladium, a palladium- containing composition which can provide zerovalent palladium under reaction conditions and palladium (II) salt, (b) a strong ligand consisting of tertiary phosphine having a pKa in water of not greater than about 6, and (c) a weak ligand consisting of tertiary phosphine having a pKa in water of greater than about 6, to provide alkyl nonadienoate ester, optionally containing at least one phenol promoter, and if desired, an alkoxide ion.

401713

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