Process for preparing substituted cyclohexanones

Details Process for preparing substituted cyclohexanones Process for preparing substituted cyclohexanones

1996-02-29

1999-03-23

Barts, Samuel

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

Organic compounds

Oxygen containing

564169, C07C 4500

Patent

active

058862323

ABSTRACT:
Substituted cyclohexanones of the formula ##STR1## where R.sup.1 to R.sup.5 are as defined in the description, can be obtained by catalytic hydrogenation of phenols of the formula ##STR2## where R.sup.1 to R.sup.5 are as defined in the description.
The reaction is carried out at from 20.degree. to 250.degree. C., from 1 to 200 bar and in an ether as solvent. If desired, an alkaline alkali metal, alkaline earth metal or ammonium compound is used as additive.

REFERENCES:
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patent: 3124614 (1964-03-01), Dankert et al.
patent: 3193584 (1965-07-01), Rylander et al.
patent: 3965180 (1976-06-01), Lednicer
patent: 4503273 (1985-03-01), Mozdzen
Chemical Abstracts, vol. 92, abstract No. 58278n, abstract of Zh. Prikl. Khim., vol. 52(8), pp. 1823-1826, (1980).
M. Haslanger, et al., Synthetic Communications, vol. 4(3), pp. 155-159, (1974).
Alicyclics, vol. 96, abstract No. 199167v, abstract of JP 82-04,932, (1982) .

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