Synthesis of N-(nitrofluorenylidene)anilines and their application as electron transport materials in positive charge electrophotography

Abstract

N-(Nitrofluorenylidene)anilines were synthesized by the condensation of nitrofluorenones with substituted anilines in the presence of zinc chloride. 2-Methyl, 2-ethyl, 2-isopropyl and 2-trifluoromethyl derivatives from 2,4,7-trinitrofluorenone showed high compatibility to polycarbonate and good properties as electron transport materials in positive charge electrophotography. The 2-isopropyl and 2-trifluoromethyl derivatives were substantially stable for the repetition test. N-(2,4,7-Trinitro-fluorenylidene)-2-isopropylaniline was negative for the Ames test.