3-chloro-2,4,5,6-tetrafluorobenzonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Chloro-tetrafluorobenzonitrile was reacted at 240° C. The reaction products were collected in 300 ml of water and, after reaction was complete, the mixture was made alkaline with 40% strength by weight aqueous sodium hydroxide solution. The organic material was extracted with methyl tert.-butyl ether, analysed and then worked up by distillation. 2,3,4,6-Tetrafluoro-toluene of boiling point 108° C. was isolated in a yield of 77.3%. The reaction products were collected in 300 ml of water after reaction The organic material was extracted with methyl tert.-butyl ether analysed and then worked up by distillation