A Facile and Convenient Synthetic Method for Fluorine-Containing Benz[c]acridines and Dihydrobenz[c]acridines from N,N-Dimethyl-1-naphthylamine - Hojo, Masaru; Masuda, Ryoichi; Okada, Etsuji; Tomifuji, Takeshi; Imazaki, Naonori (Synthesis, 1990)