Preparation of ketones

Details Preparation of ketones Preparation of ketones

1988-01-15

1989-09-12

Reamer, James H.

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

Organic compounds

Oxygen containing

568347, 568315, 568396, 568346, 568314, C07C 4565

Patent

active

048662100

ABSTRACT:
Ketones of the formula ##STR1## where R.sup.1 to R.sup.3 are each hydrogen and R.sup.1 to R.sup.4 are each alkyl of 1 to 12 carbon atoms, cycloalkyl of 4 to 8 carbon atoms, aryl, aralkyl or alkylaryl, which each in turn may be substituted, or R.sup.1 and R.sup.2 and R.sup.3 together with the carbon atoms to which they are bonded form a cycloalkane, are prepared by reacting ketones of the formula ##STR2## where one of R.sup.1, R.sup.2, R.sup.3 and R.sup.5 is hydroxyl, alkoxy or carboxyl while the remaining R.sup.1 to R.sup.4 have the abovementioned meanings, with hydrogen in the presence of acid catalysts supporting one or more hydrogenation components, zeolites of the pentasil type being particularly suitable.

REFERENCES:
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patent: 2802876 (1957-08-01), Broich et al.
patent: 2913497 (1959-11-01), Grimme et al.
patent: 3405178 (1968-10-01), Wollner et al.
patent: 3890392 (1975-06-01), Ember
patent: 3953517 (1976-04-01), Schmitt et al.
patent: 4339606 (1982-07-01), Huang et al.
patent: 4701562 (1987-10-01), Olson
Sumitomo Chemical Industries, Chem. Abstract, vol. 105, No. 1, p. 579 (1986).
European Search Report.

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