1-Fluoro-4-nitroanthraquinone reacts with C-nucleophiles, yielding the corresponding fluorine replacement products. Reactions of 1-chloro-4-nitroanthraquinone with the same nucleophiles result in formation of mixtures of dechlorination and denitration products whose ratio is determined by both charge and orbital interactions, Steric structure of the nucleophile can also affect the regioselectivity of substitution.
RUSSKIX, S. A.;KLIMENKO, L. S.;FOKIN, E. P., ZH. ORGAN. XIMII, 1983, 19, N 1, 158-164