Patent ID: 8586211

Claim:
An asymmetric arylamine derivative for an organic electroluminescent element, represented by the formula (1) with the proviso that the arylamine derivative does not include a symmetrical axis and a symmetrical surface in a molecule by inducing a secondary amine and a tertiary amine to an aryl compound (Ar) core: wherein Ar is pyrene, Ar 1 is an aryl group selected from the group consisting of an aryl group represented by the formula (4), an aryl group represented by the formula (5), an aryl group represented by the formula (6), an aryl group represented by the formula (7), an aryl group represented by the formula (8), an aryl group represented by the formula (9), an aryl group represented by the formula (10), an aryl group represented by the formula (11), and an aryl group in which at least two of the aryl groups represented by the formulas (4) to (11) are combined, and Ar 2 to Ar 5 each independently represents a divalent C 6 -C 30 aryl group, at least one of Ar 2 to Ar 5 having a different structure when the secondary amine and the tertiary amine in Ar are substituted at symmetrical positions, and Ar 2 to Ar 5 having the same structure or different structures when the secondary amine and the tertiary amine in Ar are substituted at asymmetrical positions: wherein k represents an integer of 1 to 3; wherein I represents an integer of 1 or 2; wherein m represents an integer of 1 or 2, R 1 and R 2 are each independently selected from the group consisting of a C 1 -C 20 alkyl group, a C 6 -C 20 cycloalkyl group capable of forming a unsaturated ring, a C 1 -C 20 alkoxy group, and a C 6 -C 12 aryl group; wherein n represents an integer of 1 to 3; wherein o represents an integer of 1 or 2; wherein p represents an integer of 1 or 2; and wherein q represents an integer of 1 or 2, and R 3 is a C 1 -C 20 alkyl group or a C 6 -C 12 aryl group.