NAPHTHALENE DERIVATIVE, MATERIAL FOR ORGANIC EL ELEMENT, AND ORGANIC EL ELEMENT USING THE MATERIAL

摘要

This invention provides a naphthalene derivative represented by formula (1). In formula (1), Ar1 to Ar6 each represent an aromatic hydrocarbon ring group free from an anthracene skeleton, a pyrene skeleton, an aceanthrylene skeleton, or a naphthacene skeleton, optionally having a substituent and having 6 to 18 nucleus carbon atoms. R1 to R3 represent any of an alkyl group, a cycloalkyl group, an alkoxy group, a cyano group, a silyl group, a halogen atom, and an aryl group and may be bonded to any position in naphthalene or benzene as a main chain. a, b and c are an integer of 0 or more and 4 or less. l, m,n and p are 0 or 1.