Aromatic amine derivative, organic electroluminescent element and electronic device

A compound represented by formula (1):

• wherein in formula (1), Ar1 represents an organic group A represented by the formula (A-1);
• Ar2 represents the organic group A or an organic group B represented by formula (B-1);
• and Ar3 represents the organic group B or an organic group C represented by formula (C-1),
• provided that in the case where both Ar1 and Ar2 are the organic groups A, the organic groups A may be the same as or different from each other,
• wherein in formula (A-1), R1 and R2 each independently represent a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms or an aryl group having from 6 to 12 ring carbon atoms, provided that R1 and R2 may be bonded to each other to form a hydrocarbon ring;
• R3 each independently represent a cycloalkyl group having from 3 to 10 ring carbon atoms or an aryl group having from 6 to 12 ring carbon atoms;
• R4 to R6 each independently represent an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 3 to 10 ring carbon atoms or an aryl group having from 6 to 12 ring carbon atoms;
• and
• a, b. c and d each independently represent an integer of from 0 to 2,
• provided that R3 and R4 may be bonded to each other to form a hydrocarbon ring;
• and in the case where a or b is 2, adjacent groups of R3 or adjacent groups of R4 may be bonded to each other to form a hydrocarbon ring,
• wherein in formula (B-1), Ar4 and Ar5 each independently represent a phenylene group, a naphthyiene group, an anthrylene group or a phenanthrylene group;
• Ar6 represents a phenyl group, a naphthyl group, an anthryl group or a phenanthryl group;
• R7 to R9 each independently represent an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 3 to 10 ring carbon atoms or an aryl group having from 6 to 12 ring carbon atoms;
• e and g each independently represent an integer of from 0 to 2;
• f represents an integer of from 0 to 1;
• and h and i each independently represent 0 or 1,
• provided that R7 to R9 may be bonded to each other to form a hydrocarbon ring;
• and in the case where e or g is 2, adjacent groups of R7 or adjacent groups of R9 may be bonded to each other to form a hydrocarbon ring,
• wherein in formula (C-1), Ar7 represents a substituted or unsubstituted aryl group having from 6 to 14 ring carbon atoms;
• R10 represents an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 3 to 10 ring carbon atoms or an aryl group having from 6 to 12 ring carbon atoms;
• and j represents an integer of from 0 to 2, provided. that in the case where j is 2, adjacent groups of R10 may be bonded to each other to form a hydrocarbon ring.