Aromatic amine derivative, and organic electroluminescent element using same

An aromatic amine derivative represented by formula (1):

• in formula (1), Ar1 represents a group selected from formulae (2) and 3):
• Ar2 represents a group selected from formulae (7) to (15):
• in formulae (1) and (10) to (14), L represents a single bond or a divalent group represented by formula (16), in formulae (2) and (3), L represents a divalent group represented by formula (16), and when the aromatic amine derivative represented by formula (1) includes groups L, the groups L may be the same or different;
• in formulae (1) to (3) and (7) to (16), R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, or a cyano group, and when the aromatic amine derivative represented by formula (1) includes groups R1, the groups R1 may be the same or different;
• in formula (1), R2 and R3 may be the same or different and independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group, when groups R2 exist, the groups R2 may be the same or different, and when groups R3 exist, the groups R3 may be the same or different;
• in formula (14), two groups R4 may be the same or different and independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group, and when the aromatic amine derivative represented by formula (1) includes a group represented by formula (14), R2, R3 and R4 may be the same or different;
• k represents an integer of 1 to 5;
• m represents an integer of 1 to 4;
• and
• n represents an integer of 1 to 3.