Anthracene derivative and organic light-emitting device comprising same

1. An anthracene derivative of Chemical Formula 1:

wherein:

X1 is O or S;

R1 is hydrogen, deuterium, an alkyl group that is unsubstituted or substituted with deuterium, a silyl group that is unsubstituted or substituted with deuterium, or an aryl group that is unsubstituted or substituted with deuterium, or bond to adjacent groups to form a ring that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group;

R2 is hydrogen or deuterium;

Ar is a heteroaryl group comprising O or S that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group;

a is an integer of 0 to 9, and when a is 2 or greater, the R1s are the same as or different from each other; and

b is an integer of 0 to 8, and when b is 2 or greater, the R2s are the same as or different from each other.

2. The anthracene derivative of claim 1 , wherein Ar is a dibenzofuranyl group that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group; a dibenzothiophenyl group that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group; or a pentacyclic heteroaryl group comprising Oor S that is unsubstituted or substituted with an alkyl group or an aryl group, or is Chemical Formula a:

wherein in Chemical Formula a:

* is a position bonding to a mother body;

X2 is O, S, or CR″R′″;

R″, R′″, R3 and R4 are the same as or different from each other, and each independently is hydrogen, deuterium, an alkyl group that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group, an aryl group that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group, or bond to adjacent groups to form a ring that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group;

c is an integer of 0 to 5, and when c is 2 or greater, the R3s are the same as or different from each other; and

d is an integer of 0 to 4, and when d is 2 or greater, the R4s are the same as or different from each other.

3. The anthracene derivative of claim 2 , wherein:

X2 is O, S, or CR″R′″, and

R″ and R′″ are an alkyl group or an aryl group, or R″ and R′″ bond to each other to form a ring that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group.

4. The anthracene derivative of claim 2 , wherein Chemical Formula a is Chemical Formula a-1:

wherein in Chemical Formula a-1, the substituents have the same definitions as in Chemical Formula a.

5. The anthracene derivative of claim 4 , wherein Chemical Formula a-1 is any one selected from among the following Chemical Formulae a-2 to a-4:

wherein in Chemical Formulae a-2 to a-4, the substituents have the same definitions as in Chemical Formula a-1.

6. The anthracene derivative of claim 1 , wherein Chemical Formula 1 is any one selected from among the following Chemical Formulae 1-1 to 1-4:

wherein in Chemical Formulae 1-1 to 1-4, the substituents have the same definitions as in Chemical Formula 1.

7. The anthracene derivative of claim 1 , wherein Chemical Formula 1 is Chemical Formula 2 or 3:

wherein in Chemical Formulae 2 and 3, the substituents have the same definitions as in Chemical Formula 1.

8. The anthracene derivative of claim 1 , wherein Chemical Formula 1 is any one selected from among the following Chemical Formulae 6 to 9:

wherein in Chemical Formulae 6 to 9:

R5 to R10 are the same as or different from each other, and each independently is hydrogen, deuterium, a nitrile group, a halogen group, a substituted or unsubstituted an alkyl group that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group, an aryl group that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group, or bond to adjacent groups to form a ring that is unsubstituted or substituted with deuterium, an alkyl group, or an aryl group;

e and g are the same as or different from each other, and each independently is an integer of 0 to 7;

f and h are the same as or different from each other, and each independently is an integer of 0 to 4;

i and j are the same as or different from each other, and each independently is an integer of 0 to 11;

when e is 2 or greater, the R5s are the same as or different from each other;

when f is 2 or greater, the R6s are the same as or different from each other;

when g is 2 or greater, the R7s are the same as or different from each other;

when h is 2 or greater, the R8s are the same as or different from each other;

when i is 2 or greater, the R9s are the same as or different from each other;

when j is 2 or greater, the R10s are the same as or different from each other; and

the remaining substituents have the same definitions as in Chemical Formula 1.

9. The anthracene derivative of claim 8 , wherein Chemical Formula 6 is any one selected from among the following Chemical Formulae 6-1 to 6-4:

wherein in Chemical Formulae 6-1 to 6-4, the substituents have the same definitions as in Chemical Formula 6.

10. The anthracene derivative of claim 8 , wherein Chemical Formula 7 is any one selected from among the following Chemical Formulae 7-1 to 7-4:

wherein in Chemical Formulae 7-1 to 7-4, the substituents have the same definitions as in Chemical Formula 7.

11. The anthracene derivative of claim 8 , wherein Chemical Formula 8 is any one selected from among the following Chemical Formulae 8-1 to 8-4:

wherein in Chemical Formulae 8-1 to 8-4, the substituents have the same definitions as in Chemical Formula 8.

12. The anthracene derivative of claim 8 , wherein Chemical Formula 9 is any one selected from among the following Chemical Formulae 9-1 to 9-4:

wherein in Chemical Formulae 9-1 to 9-4, the substituents have the same definitions as in Chemical Formula 9.

13. The anthracene derivative of claim 1 , wherein Chemical Formula 1 is Chemical Formula 5:

wherein in Chemical Formula 5, the substituents have the same definitions as in Chemical Formula 1.

14. The anthracene derivative of claim 13 , wherein Chemical Formula 5 is any one selected from among the following Chemical Formulae 5-1 to 5-4:

wherein in Chemical Formulae 5-1 to 5-4, the substituents have the same definitions as in Chemical Formula 5.

15. The anthracene derivative of claim 1 , wherein the anthracene derivative of Chemical Formula 1 is any one selected from among the following compounds:

16. An organic light emitting device, comprising:

a first electrode;

a second electrode provided opposite to the first electrode; and

one, two or more organic material layers provided between the first electrode and the second electrode,

wherein one or more layers of the organic material layers comprise the anthracene derivative of claim 1 .

17. The organic light emitting device of claim 16 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the anthracene derivative.

18. An organic light emitting device, comprising:

a first electrode;

a second electrode provided opposite to the first electrode; and

one, two or more organic material layers provided between the first electrode and the second electrode,

wherein the organic material layer comprises a hole injection layer, a hole transfer layer or an electron blocking layer, and the hole injection layer, the hole transfer layer or the electron blocking layer comprises an anthracene derivative of Chemical Formula 1:

wherein:

X1 is O or S;

R1 and R2 are the same as or different from each other, and each independently is hydrogen, deuterium, a nitrile group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring;

Ar is a substituted or unsubstituted heteroaryl group comprising O or S;

a is an integer of 0 to 9, and when a is 2 or greater, the R1s are the same as or different from each other; and

b is an integer of 0 to 8, and when b is 2 or greater, the R2s are the same as or different from each other.

19. An organic light emitting device, comprising:

a first electrode;

a second electrode provided opposite to the first electrode; and

one, two or more organic material layers provided between the first electrode and the second electrode,

wherein the organic material layer comprises a hole blocking layer, an electron transfer layer or an electron injection layer, and the hole blocking layer, the electron transfer layer or the electron injection layer comprises an anthracene derivative of Chemical Formula 1:

wherein:

X1 is O or S;

R1 and R2 are the same as or different from each other, and each independently is hydrogen, deuterium, a nitrile group, a halogen group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring;

Ar is a substituted or unsubstituted heteroaryl group comprising 0 or S;

a is an integer of 0 to 9, and when a is 2 or greater, the R1s are the same as or different from each other; and

b is an integer of 0 to 8, and when b is 2 or greater, the R2s are the same as or different from each other.

20. The organic light emitting device of claim 16 , wherein the organic material layer comprises a hole injection layer, a hole transfer layer or an electron blocking layer, and the hole injection layer, the hole transfer layer or the electron blocking layer comprises the anthracene derivative.

21. The organic light emitting device of claim 16 , wherein the organic material layer comprises a hole blocking layer, an electron transfer layer or an electron injection layer, and the hole blocking layer, the electron transfer layer or the electron injection layer comprises the anthracene derivative.