The full my non derivative which is displayed with the full my non derivative and exposure to light

摘要

PROBLEM TO BE SOLVED: To obtain the subject new compound giving an electrophotographic receptor having high sensitivity and high durability and useful for laser printer, shutter printer, etc., by introducing a specific bisazo structure into a fluorenone. ;SOLUTION: This compound is expressed by formula I {R¹ is a halogen, nitro, OH, a (substituted)alkyl, an aralkyl, an aryl(oxy), a substituted amino, etc.; X is O, S or NR² [R² is a (substituted) alkyl, an aryl or can aralkyl]; K¹ and K² are each a coupler residue containing OH having coupling potency; (m) is 0-4}, e.g. the compound of formula II. The compound of formula I an be produced by tetrazotizing a compound of formula III by conventional method and coupling the product with a corresponding coupler.;COPYRIGHT: (C)1998,JPO