Preparation of .beta., .gamma.-unsaturated carboxylic acids

Details Preparation of .beta., .gamma.-unsaturated carboxylic acids Preparation of .beta., .gamma.-unsaturated carboxylic acids

1985-12-30

1991-08-20

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

260413, 562406, 562497, C07C 5114, C07C 5703

Patent

active

050416421

ABSTRACT:
.beta.,.gamma.-Unsaturated carboxylic acids are facilely prepared by carbonylating a conjugated diene with carbon monoxide in the presence of (i) water, (ii) a halogenated hydracid, (iii) a palladium catalyst comprising palladium metal or supported palladium metal, a palladium oxide, or a complex salt of palladium, the anion coordinated to the palladium cation of which comprising a hard or borderline base, and (iv) a quaternary onium salt of nitrogen, phosphorus or arsenic, said N, P or As being tetra-coordinated to a carbon atom, the anion of which comprising a hard or borderline base.

REFERENCES:
patent: 4433164 (1984-02-01), Jenck

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