Abstract: An electrophotographic photoconductor includes an electroconductive substrate, and a photoconductive layer formed thereon containing at least one tertiary amine compound of formula (I) as an effective component: ##STR1## wherein Ar.sup.1 and Ar.sup.3 each is an aryl group which may have a substituent; Ar.sup.2 is a bivalent group of a carbocyclic aromatic compound or a bivalent group of a heterocyclic compound; R.sup.1 is a hydrogen atom, an alkyl group which may have a substituent or an alkoxyl group which may have a substituent; and R.sup.2 is a hydrogen atom, an alkyl group which may have a substituent or an aryl group which may have a substituent. A novel triphenylamine compound for use in the electrophotographic photoconductor is provided.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor which is composed of an electroconductive support and a photoconductive layer formed thereon comprising a novel pyrene-ring-containing olefin compound having formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 each represent hydrogen or an alkyl group which may have a substituent; Y is an aliphatic hydrocarbon group which may have a substituent, a cyclic hydrocarbon group which may have a substituent, or an aromatic group which may have a substituent; n is an integer of 0 or 1, and m is an integer of 1 to 3, provided that when n is 0, m is 1, R.sup.1 is hydrogen, and Y is an aromatic group with a substituent ##STR2## R.sup.2 and R.sup.3 each represent hydrogen, and Y and R.sup.1 may be bonded to form a ring, a method of synthesizing the pyrene-ring-containing olefin compound and an intermediate therefor are disclosed.

Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.

Abstract: An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing as a photoconductive material at least one carbonate compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, an alkyl group which may have a substituent, an aryl group which may have a substituent, or a condensed polycyclic group; Y is a bivalent arylene group which may have a substituent, ##STR2## in which Ar.sup.1 and Ar.sup.2 each is an arylene group which may have a substituent, R.sup.3 and R.sup.4 each is hydrogen, an alkyl group which may have a substituent or an aryl group which may have a substituent, and l is an integer of 1 or 2; and R.sup.1 and R.sup.2, or R.sup.1 and Y may independently form a ring; X is an alkyl group which may have a substituent or an aryl group which may have a substituent; m is an integer of 0 or 1; and n is an integer of 0 to 6.

Abstract: An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon containing a diamine compound represented by formula (I): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each is independently a substituted or unsubstituted alkyl group or aryl group; R.sup.4 is hydrogen, an alkyl group or an alkoxyl group; n is an integer of 1 to 3; and ##STR2## is a substituted or unsubstituted bivalent arylene group or a bivalent heterocyclic group. This diamine compound is useful as a photoconductive material for electrophotographic photoconductors.

Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.

Abstract: An electrophotographic photoconductor is composed of an electroconductive support, and a photoconductive layer formed thereon which contains as a photoconductive material at least one diamine compound having carbonate groups of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, an alkyl group, or an aryl group; R.sup.1 and R.sup.2 may form a ring in combination of N bonded thereto; Y is an arylene group, ##STR2## wherein Ar.sup.1 and Ar.sup.2 each is an arylene group, R.sup.3 and R.sup.4 each is hydrogen, an alkyl group, or an aryl group, and l is an integer of 1 or 2; and R.sup.1 and Y may together form a ring, X is an alkylene group, a dialkylene ether group or an arylene group, --Ar.sup.3 -Z-Ar.sup.4 --, wherein Ar.sup.3 and Ar.sup.4 each is an arylene group; Z is an alkylene group, a dialkylene ether group or a cycloalkylidene group, oxygen, sulfur, a vinylene group, m is an integer of 0 or 1; and n is an integer of 0 to 6.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon including a m-phenylenediamine derivative of formula (I): ##STR1## wherein Ar represents a non-condensed polycyclic hydrocarbon group other than a phenyl group, or a condensed polycyclic hydrocarbon group having not more than 18 carbon atoms; and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen, a halogen atom, a cyano group, a nitro group, an alkyl group, an alkoxyl group, an aryl group, an aryloxy group, an alkylmercapto group, a group represented by ##STR2## in which R.sup.6 and R.sup.7 each represent hydrogen, an alkyl group, or an aryl group, an alkylenedioxy group or an alkylenedithio group. Novel m-phenylenediamine derivatives for use in the electrophotoconductor and intermediates for producing the m-phenylenediamine derivatives, and methods of those derivatives are disclosed.

Abstract: Charge transporting materials having general formula (I): ##STR1## wherein R.sup.1 represents hydrogen; an unsubstituted or substituted alkyl group; an alkoxyl group having 1 to 4 carbon atoms; a thioalkoxyl group having 1 to 4 carbon atoms; an aryloxy group; an aralkyl group; a nitro group; an unsubstituted or substituted aryl group; a halogen; an amino group; an unsubstituted or substituted dialkylamino group; R.sup.2 represents hydrogen; an unsubstituted or substituted alkyl group; an alkoxyl group having 1 to 4 carbon atoms; or a halogen; R.sup.3 represents hydrogen; an alkyl group having 1 to 4 carbon atoms; an alkoxyl group having 1 to 4 carbon atoms; a halogen; a dialkylamino group; an amino group; a thioalkoxyl group having 1 to 4 carbon atoms; an aryloxy group; a methylenedioxy group; an aralkyl group; or an unsubstituted or substituted aryl group; R.sup.

Abstract: A pyrenylamine derivative having an unsaturated bond of formula (I), which can be employed as an organic photoconductive material for use in electrophotography: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, l, m, n, j and k are specifically defined in the specification, an aldehyde compound of formula (II), which is an intermediate for preparing the pyrenylamine derivative: ##STR2## and methods of producing the pyrenylamine derivative and the aldehyde compound are disclosed.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon including a m-phenylenediamine derivative of formula (I): ##STR1## wherein Ar represents a non-condensed polycyclic hydrocarbon group other than a phenyl group, or a condensed polycyclic hydrocarbon group having not more than 18 carbon atoms; and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen a halogen atom a cyano group, a nitro group, an alkyl group, an alkoxyl group, an aryl group, an aryloxy group, an alkylmercapto group, a group represented by ##STR2## in which R.sup.6 and R.sup.7 each represent hydrogen, an alkyl group, or an aryl group, an alkylenedioxy group or an alkylenedithio group. Novel m-phenylenediamine derivatives for use in the electrophotoconductor and intermediates for producing the m-phenylenediamine derivatives, and methods of those derivatives are disclosed.

Abstract: A diamine compound having formula (I): ##STR1## wherein R.sup.1 is hydrogen, an alkyl group having 1 to 6 carbon atoms which may have a substituent, an alkoxyl group having 1 to 6 carbon atoms which may have a substituent, an aryl group which may have a substituent, or an alkenyl group having 1 to 6 carbon atoms which may have a substituent; Ar.sup.1 is an aryl group which may have a substituent; Ar.sup.2 is a bivalent group selected from the group consisting of an arylene group and a stilbene group, which may have a substituent; n is an integer of 0 to 2; and X is a group selected from the group consisting of: ##STR2## in which R.sup.2 is hydrogen, an alkyl group having 1 to 6 carbon atoms which may have a substituent, an aryl group or a halogen; R.sup.3 and R.sup.4 each is an alkyl group having 1 to 6 carbon atoms or an aryl group.

Abstract: A diamine compound having formula (I): ##STR1## wherein R.sup.1 is hydrogen, an alkyl group having 1 to 6 carbon atoms which may have a substituent, an alkoxyl group having 1 to 6 carbon atoms which may have a substituent, an aryl group which may have a substituent, or an alkenyl group having 1 to 6 carbon atoms which may have a substituent; Ar.sup.1 is an aryl group which may have a substituent; Ar.sup.2 is a bivalent group selected from the group consisting of an arylene group and a stilbene group, which may have a substituent; n is an integer of 0 to 2; and X is a group selected from the group consisting of: ##STR2## in which R.sup.2 is hydrogen, an alkyl group having 1 to 6 carbon atoms which may have a substituent, an aryl group or a halogen; R.sup.3 and R.sup.4 each is an alkyl group having 1 to 6 carbon atoms or an aryl group.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon, the photoconductive layer includes a dipyrenylamine derivative of formula (I): ##STR1## wherein R represents an alkyl group with 1 to 12 carbon atoms, which may have a substituent, or an aryl group which may have a substituent. Novel dipyrenylamine derivatives of formula (I), in which R is -ph-(R.sup.4)n, wherein, ph is a phenyl group, R.sup.4 is hydrogen, an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms, an unsubstituted or substituted alkoxyl group having 1 to 12 carbon atoms, n is an integer of 1 to 5, and when n is 2 to 5, R.sup.4 may be the same or different, which are for use in the photoconductive layer of the electrophotographic photoconductor, are synthesized.

Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.

Abstract: An electrophotographic photoconductor is composed of an electroconductive support and a photoconductive layer formed thereon which contains a charge generating material and a charge transporting material. The charge generating material is composed of a particular triasazo compound and a particular disazo compound. A photoconductive composition useful as a photoconductive material is also composed of the trisazo compound and the disazo compound.

Abstract: An electrophotographic photoconductor is composed of an electroconductive substrate and a photoconductive layer formed thereon, the photoconductive layer includes a dipyrenylamine derivative of formula (I): ##STR1## wherein R represents an alkyl group with 1 to 12 carbon atoms, which may have a substituent, or an aryl group which may have a substituent. Novel dipyrenylamine derivatives of formula (I), in which R is --ph--(R.sup.4)n, wherein, ph is a phenyl group, R.sup.4 is hydrogen, an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms, an unsubstituted or substituted alkoxyl group having 1 to 12 carbon atoms, n is an integer of 1 to 5, and when n is 2 to 5, R.sup.4 may be the same or different, which are for use in the photoconductive layer of the electrophotographic photoconductor, are synthesized.