Process for producing fluorobenzaldehydes

Details Process for producing fluorobenzaldehydes Process for producing fluorobenzaldehydes

1988-05-04

1989-07-04

Evans, J. E.

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

Organic compounds

Oxygen containing

568437, C07C 4563, C07C 47228

Patent

active

048453048

ABSTRACT:
A process for producing a fluorobenzaldehyde of the formula: ##STR1## wherein X is a chlorine atom, a bromine atom or an iodine atom, n is an integer of from 1 to 5, and m is an integer of from 1 to 5, provided n.gtoreq.m, which comprises reacting a halogenated benzaldehyde of the formula: ##STR2## wherein X and n are as defined above, with a metal fluoride in the presence of a catalyst, wherein at least one member selected from the group consisting of quaternary phosphonium salts and quaternary ammonium salts is used as the catalyst.

REFERENCES:
patent: 4218567 (1980-08-01), Manchand et al.
patent: 4446075 (1984-05-01), Eiglmeier et al.

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