Production of alkoxy phenolic compounds

Details Production of alkoxy phenolic compounds Production of alkoxy phenolic compounds

1976-06-07

1977-05-03

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260586R, C07C 4100

Patent

active

RE0292010

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. C., 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. C., 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:
patent: 2503641 (1950-04-01), Taylor et al.
Moller, Chem. of Org. Comp., 3rd Edition, pp. 159-160 (1965).
Brooks, Chem. of Non-Benzoid Hydrocarbons, pp. 209-211, (1950).

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