Abstract Nucleophilic attack on hexafluorobenzene by N-methylformamide, treated with different bases, gave N-methyl-2, 3, 4, 5, 6-pentafluoroformanilide, N-formyl-N, N′-dimethyl- 2, 3, 5, 6-tetrafluorophenylene-1, 4-diamine and N, N′-diformyl-N, N′-dimethyl-2, 3, 5, 6- tetrafluorophenylene-1, 4-diamine. The substituted benzenes could be hydrolyzed to N- methyl-2, 3, 4, 5, 6-pentafluoroaniline and N, N′-dimethyl-2, 3, 5, 6-tetrafluorophenylene- ...
