Halogenated trifluoromethylbenzenes

Details Halogenated trifluoromethylbenzenes Halogenated trifluoromethylbenzenes

1988-10-31

1993-03-23

Brust, Joseph Paul

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

Organic compounds

Amino nitrogen containing

C07C21145

Patent

active

051965933

ABSTRACT:
Novel halogenated trifluoromethylbenzenes have the structural formula ##STR1## wherein X is halogen, preferably Cl, F or Br, and R is a group selected from the group consisting of --COOH, --C(O)NH.sub.2 and --CN. These compounds are intermediates for pesticidal trifluoromethyl diphenyl ethers and are converted thereto by replacing the fluorine para to the trifluoromethyl with substituted phenoxy group in aromatic nucleophilic substitution.
A novel intermediate which is converted by reaction with cuprous cyanide and HONO to compound having the above structural formula where X is F and R is --CN is 2,3-difluoro-5-(trifluoromethyl)aniline and has the formula ##STR2##

REFERENCES:
patent: 3823134 (1974-07-01), Houlihan
patent: 4093446 (1978-06-01), Bayer
patent: 4581361 (1986-04-01), Berlin et al.
patent: 4582948 (1986-04-01), Tang et al.
patent: 4603222 (1986-07-01), Tang et al.
Feast, W. J., J. Chem. Soc. (C), 1971, pp. 1547-1549.

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