Preparation of aromatic fluoro-compounds

Details Preparation of aromatic fluoro-compounds Preparation of aromatic fluoro-compounds

1979-03-19

1981-04-21

Reamer, James H.

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

Organic compounds

Oxygen containing

568309, C07C 4528

Patent

active

042634580

ABSTRACT:
4,4'-difluoro-benzophenone is prepared from 4,4'-diamino-diphenylmethane by diazotization in anhydrous or concentrated aqueous hydrogen fluoride and decomposition of the diazonium fluoride thus produced in the presence of nitrous acid or nitrite as oxidizing agent.

REFERENCES:
patent: 3479400 (1969-11-01), Lese et al.
patent: 4022838 (1977-05-01), Onopchenko et al.
patent: 4075252 (1978-02-01), Boudakian et al.
patent: 4096196 (1978-06-01), Boudakian et al.
Lichtenberger et al., Bull. Soc. Chim. France, pp. 318-325 (1951).
Thorne et al., "Inorganic Chemistry", pp. 675+690-692 (1943).

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