Organic compound and organic electroluminescent device using same

A compound represented by Chemical Formula 1:

• wherein in Chemical Formula 1,
• X1 to X3 are the same as or different from each other and are each independently C(R5) or N, provided that at least two of X1 to X3 are N;
• Y1 and Y2 are the same as or different from each other and are each independently selected from the group consisting of O, S, and NR11, provided that the case where both Y1 and Y2 are O is excluded;
• Ar1 and Ar2 are the same as or different from each other and are each independently selected from the group consisting of a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 ring atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 ring atoms, a C1-C40 alkyloxy group, a C6-C60 aryloxy group, a C3-C40 alkylsilyl group, a C6-C60 arylsilyl group, a C1-C40 alkylboron group, a C6-C60 arylboron group, a C6-C60 arylphosphine group, a C6-C60 arylphosphine oxide group, and a C6-C60 arylamine group, or combine with an adjacent group to form a fused ring;
• R1 to R5 and R11 are the same as or different from one another and are each independently selected from the group consisting of a hydrogen, a deuterium (D), a halogen, a cyano group, a nitro group, a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 ring atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 ring atoms, a C1-C40 alkyloxy group, a C6-C60 aryloxy group, a C3-C40 alkylsilyl group, a C6-C60 arylsilyl group, a C1-C40 alkylboron group, a C6-C60 arylboron group, a C6-C60 aryl phosphine group, a C6-C60 arylphosphine oxide group, and a C6-C60 arylamine group, or combine with an adjacent group to form a fused ring;
• o, p, and q are each independently an integer of 0 to 4, and r is an integer of 0 to 3;
• and
• the alkyl group, alkenyl group, alkynyl group, aryl group, heteroaryl group, aryloxy group, alkyloxy group, cycloalkyl group, heterocycloalkyl group, alkylsilyl group, arylsilyl group, alkylboron group, arylboron group, arylphosphine group, arylphosphine oxide group, and arylamine group of Ar1 to Ar2, R1 to R5, and R1 may be each independently substituted with at least one substituent selected from the group consisting of a deuterium (D), a halogen, a cyano group, a nitro group, a C1 to C40 alkyl group, a C2 to C40 alkenyl group, a C2 to C40 alkynyl group, a C3 to C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 ring atoms, a C6 to C60 aryl group, a heteroaryl group having 5 to 60 ring atoms, a C1 to C40 alkyloxy group, a C6 to C60 aryloxy group, a C1 to C40 alkylsilyl group, a C6 to C60 arylsilyl group, a C1 to C40 alkylboron group, a C6 to C60 arylboron group, a C6 to C60 arylphosphine group, a C6 to C60 arylphosphine oxide group, and a C6 to C60 arylamine group, and wherein when the substituent is present in a plural number, they may be the same or different from each other.

An organic electroluminescent device comprising:

• an anode;
• a cathode;
• and
• one or more organic layers disposed between the anode and the cathode,
• wherein at least one of the one or more organic layers comprises a compound represented by the following Chemical Formula 1:
• wherein in Chemical Formula 1,
• X1 to X3 are the same as or different from each other and are each independently C(R5) or N, provided that at least two of X1 to X3 are N;
• Y1 and Y2 are the same as or different from each other and are each independently selected from the group consisting of O, S, and NR11, provided that the case where both Y1 and Y2 are O is excluded;
• Ar1 and Ar2 are the same as or different from each other and are each independently selected from the group consisting of a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 ring atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 ring atoms, a C1-C40 alkyloxy group, a C6-C60 aryloxy group, a C3-C40 alkylsilyl group, a C6-C60 arylsilyl group, a C1-C40 alkylboron group, a C6-C60 arylboron group, a C6-C60 arylphosphine group, a C6-C60 arylphosphine oxide group, and a C6-C60 arylamine group, or combine with an adjacent group to form a fused ring;
• R1 to R5 and R11 are the same as or different from one another and are each independently selected from the group consisting of a hydrogen, a deuterium (D), a halogen, a cyano group, a nitro group, a C1-C40 alkyl group, a C2-C40 alkenyl group, a C2-C40 alkynyl group, a C3-C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 ring atoms, a C6-C60 aryl group, a heteroaryl group having 5 to 60 ring atoms, a C1-C40 alkyloxy group, a C6-C6 aryloxy group, a C3-C40 alkylsilyl group, a C6-C6 arylsilyl group, a C1-C40 alkylboron group, a C6-C6 arylboron group, a C6-C6 aryl phosphine group, a C6-C60 arylphosphine oxide group, and a C6-C60 arylamine group, or combine with an adjacent group to form a fused ring;
• o, p, and q are each independently an integer of 0 to 4, and r is an integer of 0 to 3;
• and
• the alkyl group, alkenyl group, alkynyl group, aryl group, heteroaryl group, aryloxy group, alkyloxy group, cycloalkyl group, heterocycloalkyl group, alkylsilyl group, arylsilyl group, alkylboron group, arylboron group, arylphosphine group, arylphosphine oxide group, and arylamine group of Ar1 to Ar2, R1 to R5, and R1 may be each independently substituted with at least one substituent selected from the group consisting of a deuterium (D), a halogen, a cyano group, a nitro group, a C1 to C40 alkyl group, a C2 to C40 alkenyl group, a C2 to C40 alkynyl group, a C3 to C60 cycloalkyl group, a heterocycloalkyl group having 3 to 40 ring atoms, a C6 to C60 aryl group, a heteroaryl group having 5 to 60 ring atoms, a C1 to C40 alkyloxy group, a C6 to C60 aryloxy group, a C1 to C40 alkylsilyl group, a C6 to C60 arylsilyl group, a C1 to C40 alkylboron group, a C6 to C60 arylboron group, a C6 to C60 arylphosphine group, a C6 to C60 arylphosphine oxide group, and a C6 to C60 arylamine group, and wherein when the substituent is present in a plural number, they may be the same or different from each other.