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US 4,160,786 AGranted
Process for isomerizing cycloalkenol to cycloalkanone
AssigneeSCM Corporation
InventorWilliam J. Ehmann
Life of this patent
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Abstract
A beta-, gamma-unsaturated cycloalkenol contaminated with an acid-forming moiety is catalytically isomerized to a cycloalkanone in the presence of copper chromite catalyst and an insoluble base which suppresses the acid-forming moiety during the isomerization.
Claims12
A process for isomerizing a beta-, gamma-unsaturated cycloalkenol to a cycloalkanone, wherein said cycloalkenol is contaminated with an acid-forming moiety capable of causing dehydration of said cycloalkenol, which comprises:
- forming a reaction mixture of said cycloalkenol, a catalytic amount of copper chromite catalyst, and between about 0.01% and 10% by weight of said cycloalkenol of a base which has a solubility in said reaction mixture not substantially above about 5 millimoles per gram of said catalyst, said base rendering said moiety substantially incapable of causing said dehydration,
- heating said reaction mixture at about 150.degree. to 300.degree. C. until said cycloalkanone is formed;
- and
- recovering said cycloalkanone from said reaction mixture.
1 more element
Dependencies are inferred from the claim text.