Occidental Chemical Corporation

Fredrick J Goetz

David Y Tang

Byron R Cotter

A process for the preparation of 3-chloro-4-fluoro-5-nitrobenzotrifluoride and 3,4-difluoro-5-nitrobenzotrifluoride by reaction of 3,4-di-chloro-5-nitrobenzotrifluoride and 4-chloro-3,5-dinitrobenzotrifluoride, respectively, with an alkali metal fluoride.

3,4-difluoro-5-nitrobenzotrifluoride and preparation of

Chloro-aromatic compounds of the formula ##STR1## wherein R is CF.sub.3, OCF.sub.3, OC.sub.2 F.sub.5, CN, NCO, or COCl, m is 0, 1 or 2; n is 0, 1 or 2; q is 1 or 2; q+m+n is less than 6; and when q is 1, m is 2; are prepared by the vapor phase chloro-denitration reaction of a chlorinating agent with a nitro-aromatic compound of the formula ##STR2## where R, m, n and q are as defined above.

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Wilmington, DE, United States of America

Fredrick J Goetz