Method for the production of alkoxycyclohexanones

Details Method for the production of alkoxycyclohexanones Method for the production of alkoxycyclohexanones

1974-04-26

1976-11-16

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4500, C07C 4110

Patent

active

039924521

ABSTRACT:
Alkoxy phenols such as o-methoxyphenol (guaiacol) and o-ethoxyphenol are prepared from substituted cycloaliphatic ketones by dehydrogenation thereof in the presence of a Group VIII noble metal catalyst, preferably palladium supported on carbon, at a temperature of 150.degree. to 250.degree. C. The reaction is carried out neat or in the liquid phase using an alicyclic ester reaction solvent having a boiling point ranging from about 150.degree. to 250.degree. C. The substituted cycloaliphatic ketone reactant, such as 2-chlorocyclohexanone is prepared by chlorination of cyclohexanone with subsequent conversion of the 2-chlorocyclohexanone to the alkoxy-cyclohexanone compound which is dehydrogenated.

REFERENCES:
durbeck et al., "Tetrahedron" vol. 27, pp. 2927-37 (1971).

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