Electrophotographic light-sensitive material comprising a charge-generating material and a charge-transporting material

Claim 1

An electrophotographic light-sensitive material with an electrophotographic light-sensitive layer containing a charge-generating material and a charge-transporting material wherein the charge-generating material is a compound represented by the general formula (I) or (II): ##STR15## wherein (i) m is 0 or 1, and n is 0, 1 or 2; (ii) R 1 , R 2 , R 3 , R 4 and R 5 may be the same or different, and are each a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group; (iii) A 1 is a univalent group which is derived from one of the substituted phenyl group, 5-membered monocyclic or condensed heterocyclic, and 6-membered condensed heterocyclic rings represented by the following formula: ##STR16## (wherein R 6 is an alkoxy group, an aralkyloxy group or a substituted amino group represented by the formula: ##STR17## (wherein R 12 and R 13 may be the same or different, and are each a substituted or unsubstituted alkyl group or a substituted or unsubstituted phenyl group, or groups capable of combining together to form a heterocyclic ring containing a nitrogen atom); R 7 and R 8 may be the same or different, and are each a hydrogen atom, a halogen atom, an alkyl group or a lower alkoxy group; Y and Z may be the same or different, and are each S, O or N-R 14 (wherein R 14 is an alkyl group containing from 1 to 4 carbon atoms); R 9 and R 10 may be the same or different, and are each a hydrogen atom, an alkyl group or an alkoxy group, or they are groups capable of combining together to form a benzene or naphthalene ring; and R 11 is a hydrogen atom, an alkyl group, an alkoxy group, an aryloxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a halogen atom, a monoalkylamino group, a dialkylamino group, an amido group or a nitro group, which may be either substituted or not substituted); (iv) A 2 is a divalent group which is derived from a heterocyclic ring nucleus selected from the group consisting of imidazole, 3H-indole, thiazole, benzothiazole, naphthothiazole, thianaphtheno-7',6',4,5-thiazole, oxazole, benzoxazole, naphthoxazole, selenazole, benzoselenazole, naphthoselenazole, thiazoline, 2-quinoline, 4-quinoline, 1-isoquinoline, benzimidazole, 2-pyridine, and 4-pyridine; and (v) B is an atom group necessary to form a divalent group which is derived from a carbon ring or heterocyclic ring containing the oxo oxygen atom of the carbonyl group linked to one of the rings represented by the following formulae: ##STR18## (wherein W is O, S or SO 2 ; R 15 is the same as R 11 ; R 16 is an alkyl group, an aralkyl group or an unsubstituted or substituted aryl group; and R 17 and R 18 may be the same or different, and are each an alkyl group, an arlkyl group; or an unsubstituted or substituted phenyl group).