Electrophotographic material containing disazo compounds

Abstract

Abstract The present invention provides disazo compounds expressed by the general formula I ##STR1## [wherein A represents ##STR2## (wherein R represents alkyl radical, alkoxy radical, nitro radical, dialkylamino radical or halogen, n is 0 or an integer of 1, 2 or 3, and R may be either identical or different when n is an integer of 2 or 3)]; a process for the preparation of said compounds; and electrophotographic sensitive materials having a high sensitivity as well as a high flexibility which comprise a conductive support and a photosensitive layer formed thereon, said photosensitive layer containing a disazo compound, as an effective ingredient, which is expressed by the general formula II ##STR3## [wherein A' represents ##STR4## (wherein X represents aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as indole ring, carbazole ring, benzofuran ring, etc. or their substituents, Ar 1 represents aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as dibenzofuran, etc. or their substituents, Ar 2 and Ar 3 represent aromatic rings such as benzene ring, naphthalene ring, etc. or their substituents, R 1 and R 3 represent respectively hydrogen, lower alkyl radical, phenyl radical or their substituents, and R 2 represents lower alkyl radical, carboxyl radical or their esters)].

Inventors

• 👤 Masaomi Sasaki
• 👤 Kiyoshi Sakai
• 👤 Mitsuru Hashimoto
• 👤 Masafumi Ohta
• 👤 Akio Kozima

Bibliographic Details