Carbonylation of allylic ethers to esters
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United States of America Patent
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Apr 2, 1991
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N/A
app pub date -
Oct 3, 1985
filing date -
Oct 3, 1985
priority date (Note) -
Expired
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Abstract
A method is disclosed for the production of esters by reaction of an allylic ether with carbon monoxide in the presence of a catalytically effective amount of a Group VIII noble metal catalyst and a Group IB metal halide to obtain esters. The Group IB metal halide is present in an amount sufficient to prevent the catalyst from being converted into a Group VIII metal during the reaction. When the reaction is conducted in the presence of a quaternary ammonium salt the ester may be extracted by solvent extraction to minimize catalyst decomposition caused when extractive distillation is used to separate the ester.
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