Hydrogenation of a diarylketone to a diarylmethanol

Details Hydrogenation of a diarylketone to a diarylmethanol Hydrogenation of a diarylketone to a diarylmethanol

1980-09-22

1981-11-24

Evans, Joseph E.

Chemistry of inorganic compounds

Oxygen or compound thereof

Peroxide

568809, C07C 29136, C01B 15026

Patent

active

043024351

ABSTRACT:
Process comprising contacting and reacting a diarylketone of the formula RCOR', wherein each of R and R' is aryl, the same or different, and hydrogen over at least a catalytic amount of lead-poisoned palladium catalyst, for example, Lindlar catalyst, at a hydrogen gage pressure in the range from about 150 kPa to about 15,000 kPa, preferably from about 340 kPa to about 3400 kPa, at a temperature in the range from about 50.degree. C. to about 200.degree. C., preferably from about 100.degree. C. to about 150.degree. C., to produce diarylmethanol of the formula RCHOHR', wherein R and R' are as defined above.

REFERENCES:
patent: 2871104 (1959-01-01), Rust
Coffey, "Rodd's Chemistry of Carbon Compounds", 1974, pp. 65, 76-79.
Blatt, "Organic Syntheses", Collective vol. I, 1948, pp. 90, 91.
Werbel et al., "J. Org. Chem.", vol. 29 (1964), pp. 967, 968.
Lindlar et al., "Organic Syntheses", Collective vol. V, 1973, pp. 880-883.
Lindlar, "Helv. Chim. Acta.", 35, (1952), pp. 446-450.
Fieser et al., "Reagents for Organic Synthesis", vol. 1, (1967), pp. 566, 567.
Strem Catalog, No. 9, 1980-1981, pp. 69, 185, 199.

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