Process for the production of fluorenone by catalytic oxidation

Details Process for the production of fluorenone by catalytic oxidation Process for the production of fluorenone by catalytic oxidation

1978-01-30

1980-08-19

Helfin, Bernard

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

Organic compounds

Oxygen containing

C07C 4502

Patent

active

042184002

ABSTRACT:
An improved process for the production of pure fluorenone by oxidation of fluorene with air or oxygen at ambient temperature in the presence of a quaternary salt, the improvement comprising carrying out the reaction in a suspension of fluorene or a fluorene-containing fraction in an aprotic immiscible with water solvent, such as a .alpha.-methyl naphthalene, which contains and is primed with a 30%-60% aqueous alkali metal hydroxide solution, and intimately mixing the organic and aqueous phases during the reaction.

REFERENCES:
patent: 3855252 (1974-12-01), Robinson et al.
patent: 3875237 (1975-04-01), Niznik
Sprinzak, J.A.C.S., vol. 80, pp. 5449-5454 (1958).
Alneri et al., Tet. Lett. (#24), pp. 2117-2118 (1977).

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