Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device

A compound of formula (1):

• wherein,
• R1 to R4 are each independently selected from the group consisting of a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms,
• L1 to L4 are each independently selected from the group consisting of a single bond and a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms,
• R1 or L1 does not bond to R2 or L2 to form a ring structure, and R3 or L3 does not bond to R4 or L4 to form a ring structure. R1 does not bond to R3 to form a ring structure, R1 does not bond to R4 to form a ring structure, R2 does not bond to R3 to form a ring structure, and R2 does not bond to R4 to form a ring structure, and
• Ar is formula (A) or (B):
• wherein,
• R11 to R18 and R20 to R29 are each independently a hydrogen atom or a substituent, and the substituent is selected from the group consisting of a halogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 ring carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted aralkyl group having 7 to 36 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a mono-, di-, or tri-substituted silyl group having a substituent selected from a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms and a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms,
• adjacent two selected from R11 to R18 do not form a ring structure, and adjacent two selected from R20 to R29 do not form a ring structure,
• provided that one selected from R11 to R18 is a single bond bonding to *a, and one selected from R20 to R29 is a single bond bonding to *b, and
• Ar does not bond to a benzene ring bonding to Ar to form a ring structure.