Bisazo compound and electrophotographic photoconductor using the same
AssigneeRicoh Company, Ltd.
InventorTomoyuki Shimada
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Abstract
An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon which contains at least one bisazo compound of formula (I): wherein Cp1 and Cp2 are each a coupler radical which may be the same or different. Further, these are disclosed a bisazo compound of formula (II), and raw materials thereof, that is, 1,4-bis[4-(4-nitrophenyl)-1,3-butadienyl]benzene of formula (V), 1,4-bis[4-(4-aminophenyl)-1,3-butadienyl]benzene of formula (VI) and a bis(diazonium salt) compound of formula (III).
Claims3
1,4-bis[4-(4-nitrophenyl)-1,3-butadienyl]benzene represented by formula (V):
A method of producing 1,4-bis[4-(4-nitrophenyl)-1,3-butadienyl]benzene of formula (V) comprising the step of allowing a bis(phosphonium salt) compound of formula (VII) to react with 4-nitrocinnamaldehyde:
- wherein R is phenyl group or an alkyl group;
- and Y⊖ is a halogen ion.
A method of producing 1,4-bis[4-(4-nitrophenyl)-1,3-butadienyl]benzene of formula (V) comprising the step of allowing a phosphonate of formula (VIII) to react with terephthalaldehyde:
- wherein Z is a lower alkyl group.
Dependencies are inferred from the claim text.