Compound and organic electroluminescence device

A compound represented by the following formula (1-5):

• wherein, in the formulas (1-5),
• one or more sets of two or more adjacent to each other among R1, R2 and R3 to R8 are bonded with each other to form a substituted or unsubstituted and saturated or unsaturated ring, or do not form the ring;
• R1, R2 and R3 to R8 that do not form the ring are independently
• a hydrogen atom, a halogen atom, a cyano group, a nitro group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms,
• a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• —Si(R901)(R902)(R903),
• —O—(R904),
• —S—(R905),
• —N(R906)(R907),
• a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or
• a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;
• R901 to R907 are independently
• a hydrogen atom,
• 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 aryl group having 6 to 50 ring carbon atoms, or
• a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;
• when two or more of R901 to R907 exist, two or more of R901 to R907 may be the same with or different from each other;
• two of *1 are fused with a group represented by the following formula (1A) to form a nitrogen atom-containing five-membered ring;
• two of *2 are fused with a group represented by the following formula (1A), which is different from the group bonded with the two of *1, to form a nitrogen atom-containing five-membered ring;
• the two groups represented by the following formula (1A) may be the same with or different from each other;
• wherein, in the formula (1A), one set selected from R21 and R22, R22 and R23, R23 and R24, R25 and R26, R26 and R27, and R27 and R28 is bonded with the two of *1 or the two of *2 in the formula (1-5);
• one or more sets of two or more adjacent to each other among R21 to R28 that are not bonded with the two of *1 or the two of *2 in the formula (1-5) are bonded with each other to from a substituted or unsubstituted and saturated or unsaturated ring, or do not form the ring;
• R21 to R28 that are neither bonded with the two of *1 or the two of *2 in the formula (1-5) nor form the ring are independently
• a hydrogen atom, a halogen atom, a cyano group, a nitro group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms,
• a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• —Si(R901)(R902)(R903),
• —O—(R904),
• —S—(R905),
• —N(R906)(R907),
• a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or
• a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms;
• R901 to R907 are as defined in the formula (1-5);
• X1 is selected from O, S and N(R35), and two of X1 may be the same with or different from each other;
• R35 is bonded with either or both of R21 and R28 to form a substituted or unsubstituted and saturated or unsaturated ring, or does not form the ring;
• and
• R35 that does not form the ring is a hydrogen atom,
• 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 aryl group having 6 to 50 ring carbon atoms, or
• a substituted or unsubstituted monovalent heterocyclic group having 5 to 50 ring atoms.