Preparation of unsaturated monoesters by the catalytic oxidative

Details Preparation of unsaturated monoesters by the catalytic oxidative Preparation of unsaturated monoesters by the catalytic oxidative

1979-06-26

1980-11-25

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

C07C 6736

Patent

active

042360234

ABSTRACT:
A process for the preparation of an unsaturated monoester having the formula ##STR1## wherein R is an alkyl group of from 1 to 4 carbon atoms and R' is hydrogen, a halogen or a methyl group, by reacting carbon monoxide, oxygen, and at least a stoichiometric amount of an enol ether, or a 1-alkoxycycloalkene dehydrating agent with a diolefin having the formula ##STR2## wherein R' is as hereinabove described, in the presence of a catalytic amount of a platinum group metal compound and a copper or iron oxidant salt compound.
Alternatively, a ligand or coordination complex compound of the metal salt compound and catalytic quantitites of an alcohol may be employed.

REFERENCES:
patent: 3397226 (1968-08-01), Fenton
patent: 3907882 (1975-09-01), Gaenzler et al.
patent: 4065490 (1977-12-01), Zehner
Houben-Weyl, "Methoden der organischen Chemie", Georg Thieme Verlag., Band VII, Teil 1 at p. 436.
Tsuji, Jiro et al., "Organic Synthesis by Means of Noble Metal Compounds XIII, Carbonylation of Butadiene- and Isoprene-Palladium Chloride Complexes", J. Am. Chem. Soc., 87 (1965), pp. 4075-4079.

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