Process for the preparation of 1,2,4- trifluorobenzene and...

Details Process for the preparation of 1,2,4- trifluorobenzene and... Process for the preparation of 1,2,4- trifluorobenzene and...

C - Chemistry, Metallurgy

07

C

C07C 25/13 (2006.01) C07C 17/093 (2006.01) C07C 245/20 (2006.01) C07C 17/22 (1990.01)

Patent

CA 2078215

2078215 9116287 PCTABS00007 1,2,4-Triflurobenzene and 1-chloro-3,4-difluorobenzene are prepared by reacting 2,4-difluoroaniline and 5-chloro-2-fluoroaniline, respectively, with t-butyl nitrite in the presence of borontrifluoride etherate complex, followed by the thermal decomposition of the resulting diazonium salts 2,4-difluorophenyl-1-diazoniumtetrafluoroborate and 1-fluoro-4-chlorophenyl-2-diazoniumtetrafluoroborate.

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