Organic electrophotographic sensitive materials

An electrophotographic sensitive material comprising an electrophotographic sensitive layer containing a compound represented by formula (1) ##STR7## wherein R.sup.1 and R.sup.2 each represents an unsubstituted or substituted straight chain or branched chain alkyl group having from 1 to 12 carbon atoms, an unsubstituted or substituted straight chain or branched chain aralkyl group having from 7 to 20 carbon atoms, or an aryl group consisting of a monovalent group consisting of an unsubstituted or substituted monocyclic aromatic hydrocabon or a polycyclic aromatic hydrocarbon having from 2 to 4 nuclei from which a hydrogen atom is removed;

• R.sup.3 represents an unsubstituted or substituted straight chain or branched chain alkyl group having from 1 to 12 carbon atoms, an unsubstituted or substituted aralkyl group having from 7 to 20 carbon atoms or an unsubstituted aryl group;
• and R.sup.4 and R.sup.5 each represents an unsubstituted or substituted straight chain or branched chain alkyl group having from 1 to 12 carbon atoms, an unsubstituted or substituted aralkyl group having from 7 to 20 carbon atoms, an N-containing heterocyclic group consisting of a monovalent group consisting of an unsubstituted or substituted nitrogen-containing heterocyclic compound from which a hydrogen atom is removed, a halogen atom, an alkoxy group, an aryloxy group, a dialkylamino group, or a hydrogen atom;
• wherein the electrophotographic sensitive layer is composed of two layers comprising a charge generating layer, and a charge transport layer containing a compound represented by formula (1).