Aromatic polyfluoro-compounds. Part XXXIII. The synthesis of some derivatives of 1,2,3,4-tetrafluoroacridine
Abstract
2,3,4,5,6-Pentafluoro-2′-nitrodiphenylmethanol has been prepared, oxidised to the corresponding ketone, and reduced to the amino- and nitroso-derivatives. Chemical, pyrolytic, and photolytic cyclisations of these compounds to derivatives of 1,2,3,4-tetrafluoroacridine are described.