Electroluminescent element, organic electroluminescent element, and electronic appliance

A compound represented by the following formula (1):

• wherein
• R1 to R9 are each independently selected from 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, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and a cyano group;
• provided that, in one or more pairs selected from R1 and R2, R2 and R3, R3 and R4, R4 and R5, R6 and R7, R7 and R8, and R8 and R9, adjacent two may bind to each other to form a substituted or unsubstituted ring structure, or R1 and R9 may bind to each other to form-CRaRb— that crosslinks two benzene rings;
• Ra and Rb are each independently selected from 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, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and a cyano group;
• two selected from Y1 to Y3 are a nitrogen atom and the remaining one is CR, or all of Y1 to Y3 are a nitrogen atom;
• R is selected from 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, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and a cyano group;
• X1 is an oxygen atom or a sulfur atom;
• R21 to R27 are a hydrogen atom;
• R31 to R34 are each independently selected from 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, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and a cyano group;
• provided that, in one or more pairs selected from R31 and R32, R32 and R33, and R33 and R34, adjacent two may bind to each other to form a substituted or unsubstituted ring structure;
• L is selected from a single bond, a substituted or unsubstituted arylene group having 6 to 50 ring carbon atoms, and a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring carbon atoms;
• one of R11 to R14 is a single bond binding to *a;
• R11 to R14 that are not a single bond binding to *a and R15 to R18 are a hydrogen atom;
• X2 is selected from an oxygen atom, a sulfur atom, NRA, and CRBRC;
• RA is selected from 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, and a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms;
• RB and RC are each independently selected from 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, a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms, and a cyano group;
• provided that, when RB and RC are each independently a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, the two aryl groups may be crosslinked via —O— or —S—.