- STILBENE DERIVATIVE, METHOD FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR
PROBLEM TO BE SOLVED: To provide a stilbene derivative having predetermined substituents in the intramolecular triphenylamine structure, thus improved in compatibility with binder resin and yielding predetermined drum sensitivity properties, to provide a method for producing the stilbene derivative, and to provide an electrophotographic photoreceptor containing the stilbene derivative. SOLUTION: The stilbene derivative is represented by general formula(1) ( wherein, A is a bivalent organic group containing a substituted or nonsubstituted aromatic ring; and R1 to R18 are each H, a substituted or nonsubstituted 1-6C alkyl or the like, wherein at least two of R1 to R18 may be bound to or condensed with each other to form a carbocyclic group or heterocyclic group ). The method for producing the stilbene derivative comprises carrying out a reaction between a specific formylated triphenylamine derivative and a specific diphosphoric ester derivative in the presence of a base. The electrophotographic photoreceptor containing the stilbene derivative is also provided.
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Page/Page column 36
(2010/02/13)
- STILBENE DERIVATIVE, METHOD FOR PRODUCING THE SAME AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR
PROBLEM TO BE SOLVED: To obtain a stilbene derivative that is hardly crystallized, has excellent compatibility with a binder resin and predetermined sensitivity not only at the early stage but also for many hours by having a triphenylamine structure containing a diphenylethenyl group in the molecule of a stilbene derivative, to provide a method for producing the same and to obtain an electrophotographic photoreceptor containing the stilbene derivative. SOLUTION: The stilbene derivative has a triphenylamine structure containing a diphenylethenyl group. The stilbene derivative is represented by formula (1) (R1, R2, R4-R10 and R12-R16 are each independently a 1-20C substituted or nonsubstituted alkyl group or the like; R3 and R11 are each a 1-20C substituted or nonsubstituted alkyl group or a 14-30C substituted or nonsubstituted diphenylethenyl group or the like; a repeating number A is an integer of 2-6). The electrophotographic photoreceptor comprises the stilbene derivative.
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Page/Page column 46-47
(2010/02/14)