Compound, and organic electroluminescent material and organic electroluminescent device comprising the same

A compound represented by the following Formula 1:

• wherein,
• X1 to X3 each independently represent CR5 or N, provided that at least one of X1 to X3 is N;
• Ar1 represents hydrogen, deuterium, halogen, cyano, amino, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, —Si(R11)(R12)(R13), or —N(R14)(R15);
• R11 to R15 each independently represent a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C2-C30)alkenyl, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
• L1 represents a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted (3- to 30-membered)heteroarylene;
• Ar represents a substituted or unsubstituted (C6-C30)aryl or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
• R1 to R5 each independently represent hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, or a substituted or unsubstituted tri(C6-C30)arylsilyl;
• or may be linked to the adjacent substituents to form a ring(s);
• and
• a, b, and d each independently represent an integer of 1 to 4, c represents an integer of 1 to 3, and when a to d are an integer of 2 or more, each of R1 to R4 may be the same as or different from each other.