Method for preparing the pyrenylamine derivatives

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