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

A compound represented by the following formula (1A):

• in the formula (1A),
• N* is a central nitrogen atom,
• p represents 0 or 1,
• q represents 0 or 1,
• provided that p+q≥1,
• when p is 0 and q is 1, *a bonds to the nitrogen atom N*, and one selected from R6 to R10 is a single bond bonding to *b,
• when p is 1 and q is 0, one selected from R1 to R5 is a single bond bonding to *b,
• when p is 1 and q is 1, one selected from R1 to R5 is a single bond bonding to *a, and one selected from R6 to R10 is a single bond bonding to *b,
• R1 to R5 that are not a single bond bonding to *a or *b, R6 to R10 that are not a single bond bonding to *b, R11 to R14, and R21 to R27 each independently represent
• a hydrogen atom, a halogen atom, a nitro group, a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms,
• a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or
• a mono, di or tri-substituted silyl group having substituent(s) selected from a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• adjacent two selected from R1 to R5 that are not a single bond, adjacent two selected from R6 to R10 that are not a single bond, adjacent two selected from R11 to R14 that are not a single bond, and adjacent two selected from R21 to R27 do not bond to each other and therefore do not form a cyclic structure,
• provided that one or more pairs of two benzene rings bonding to each other selected from the benzene ring U, the benzene ring V and the benzene ring W may be crosslinked with CRxRy to form a substituted or unsubstituted fluorene structure, or may not be crosslinked and may not form a fluorene structure,
• Rx and Ry each independently represent a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and Rx and Ry may bond via a single bond,
• Ar1 and Ar2 each are independently represented by any of the following formulae (1-a) to (1-e):
• in the formula (1-a),
• R31 to R35, R41 to R46, and R51 to R55 each independently represent
• a hydrogen atom, a halogen atom, a nitro group, a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms,
• a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or
• a mono, di or tri-substituted silyl group having substituent(s) selected from a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• provided that,
• one selected from R31 to R35 is a single bond bonding to *c,
• one selected from R41 to R46 is a single bond bonding to *d, and the other one selected from R41 to R46 is a single bond bonding to *e,
• ** is a bonding position to the nitrogen atom N*,
• m1 represents 0 or 1, and n1 represents 0 or 1,
• when m1 is 0 and n1 is 0, *e bonds to the nitrogen atom N*
• when m1 is 0 and n1 is 1, *c bonds to the nitrogen atom N*,
• when m1 is 1 and n1 is 0, one selected from R31 to R35 is a single bond bonding to *e,
• k represents 1 or 2,
• adjacent two selected from R31 to R35 that are not a single bond, adjacent two selected from R41 to R46 that are not a single bond, and adjacent two selected from R51 to R55 do not bond to each other and therefore do not form a cyclic structure,
• the benzene ring A and the benzene ring B, the benzene ring A and the benzene ring C, and the benzene ring B and the benzene ring C do not crosslink;
• in the formula (1-b),
• R61 to R68 each independently represent
• a hydrogen atom, a halogen atom, a nitro group, a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms,
• a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or
• a mono, di or tri-substituted silyl group having substituent(s) selected from a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• provided that, one selected from R61 to R68 is a single bond bonding to *f,
• ** represents a bonding position to the nitrogen atom N*,
• adjacent two selected from R61 to R68 that are not a single bond do not bond to each other and therefore do not form a cyclic structure;
• in the formula (1-c),
• R31 to R35, R41 to R46, **, *c, *d, and *e are the same as above,
• R71 to R80 each independently represent
• a hydrogen atom, a halogen atom, a nitro group, a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms,
• a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or
• a mono, di or tri-substituted silyl group having substituent(s) selected from a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• provided that, one selected from R71 to R80 is a single bond bonding to *h,
• m2 represents 0 or 1, n2 represents 0 or 1,
• when m2 is 0 and n2 is 0, *e bonds to the nitrogen atom N*,
• when m2 is 0 and n2 is 1, *c bonds to the nitrogen atom N*,
• when m2 is 1 and n2 is 0, one selected from R31 to R35 is a single bond bonding to *e,
• adjacent two selected from R31 to R35 that are not a single bond, adjacent two selected from R41 to R46 that are not a single bond, and adjacent two selected from R71 to R80 do not bond to each other and therefore do not form a cyclic structure,
• the benzene ring A and the benzene ring B do not crosslink;
• in the formula (1-d),
• R31 to R35, R41 to R46, **, *c, *d, and *e are the same as above,
• R81 to R92 each independently represent
• a hydrogen atom, a halogen atom, a nitro group, a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms,
• a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or
• a mono, di or tri-substituted silyl group having substituent(s) selected from a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• provided that, one selected from R81 to R92 is a single bond bonding to *g,
• m3 represents 0 or 1, n3 represents 0 or 1,
• when m3 is 0 and n3 is 0, *e bonds to the nitrogen atom N*,
• when m3 is 0 and n3 is 1, *c bonds to the nitrogen atom N*,
• when m3 is 1 and n3 is 0, one selected from R31 to R35 is a single bond bonding to *e,
• adjacent two selected from R31 to R35 that are not a single bond, adjacent two selected from R41 to R46 that are not a single bond, and adjacent two selected from R81 to R92 do not bond to each other and therefore do not form a cyclic structure,
• the benzene ring A and the benzene ring B do not crosslink;
• in the formula (1-e),
• R31 to R35, **, and *c are the same as above,
• R101 to R108 each independently represent
• a hydrogen atom, a halogen atom, a nitro group, a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted haloalkoxy group having 1 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms,
• a substituted or unsubstituted aralkyl group having 7 to 50 carbon atoms, or
• a mono, di or tri-substituted silyl group having substituent(s) selected from a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, and a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• provided that, one selected from R101 to R108 is a single bond bonding to *i,
• m4 represents 0 or 1,
• one of Ra and Rb is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, and the other is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, or Ra and Rb each are independently a substituted or unsubstituted alkyl group having 1 to 50 ring carbon atoms, or a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms,
• adjacent two selected from R101 to R104 and R105 to R108 that are not a single bond do not bond to each other and therefore do not form a cyclic structure,
• provided that when Ar1 is represented by the formula (1-e), m4 is 1, and when Ar2 is represented by the formula (1-e), m4 is 0 or 1,
• ** represents a bonding position to the nitrogen atom N*,
• wherein, when either one of Ar1 or Ar2 has formula (1-b), (1-c), or (1-d), the other of Ar1 and Ar2 has formula (1-a), and
• wherein, when Ar1 or Ar2 has formula (1-e), m4 is 1.