Organic electroluminescent compound and organic electroluminescent device comprising the same

1 . An organic electroluminescent compound represented by any one of the following formulae 2, 3, and 5:

Wherein,

Y and Y 1 each independently represent —N-L 1 -Ar 1 , —O—, —S—, or —CR 1 R 2 ;

L 1 represents a single bond, a substituted or unsubstituted (C1-C30)alkylene, a substituted or unsubstituted (C6-C30)arylene, a substituted or unsubstituted (3-to 30-membered) heteroarylene, or a substituted or unsubstituted (C3-C30)cycloalkylene;

Ar 1 represents a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3-to 30-membered) heteroaryl, or —NR 3 R 4 ;

R 1 to R 4 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, or a substituted or unsubstituted (C3-C30)cycloalkyl; or may be linked to an adjacent substituent to form a substituted or unsubstituted ring;

Z 1 to Z 12 each independently represent N or CR a ; and

R a 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, a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted mono- or di-(C1-C30)alkylamino, a substituted or unsubstituted mono- or di-(C6-C30)arylamino, a substituted or unsubstituted (C1-C30)alkyl(C6-30)arylamino, a substituted or unsubstituted mono- or di-(3-to 30-membered)heteroarylamino, or a substituted or unsubstituted (C6-C30)aryl (3-to 30-membered)heteroarylamino.

2 . The organic electroluminescent compound according to claim 1 , wherein the substituents of the substituted (C1-C30)alkyl(ene), the substituted (C6-C30)aryl(ene), the substituted (3-to 30-membered)heteroaryl(ene), the substituted (C3-C30)cycloalkyl(ene), the substituted (C1-C30)alkoxy, the substituted tri(C1-C30)alkylsilyl, the substituted di(C1-C30)alkyl(C6-C30)arylsilyl, the substituted (C1-C30)alkyldi(C6-C30)arylsilyl, the substituted tri(C6-C30)arylsilyl, the substituted mono- or di-(C1-C30)alkylamino, the substituted mono- or di-(C6-C30)arylamino, the substituted (C1-C30)alkyl(C6-30)arylamino, and the substituted ring in Ar 1 , L 1 , R 1 to R 4 , and R a each independently represent at least one selected from the group consisting of deuterium, halogen, cyano, carboxyl, nitro, hydroxyl, (C1-C30)alkyl, halo(C1-C30)alkyl, (C2-C30)alkenyl, (C2-C30)alkynyl, (C1-C30)alkoxy, (C1-C30)alkylthio, (C3-C30)cycloalkyl, (C3-C30)cycloalkenyl, (3-to 7-membered)heterocycloalkyl, (C6-C30)aryloxy, (C6-C30)arylthio, (C6-C30)aryl, (3-to 30-membered) heteroaryl, tri(C1-C30)alkylsilyl, tri(C6-C30)arylsilyl, di(C1-C30)alkyl(C6-C30)arylsilyl, (C1-C30)alkyldi(C6-C30)arylsilyl, amino, mono- or di-(C1-C30)alkylamino, (C1-C30)alkyl-substituted or unsubstituted mono- or di-(C6-C30)arylamino, (C1-C30)alkyl(C6-C30)arylamino, (C1-C30)alkylcarbonyl, (C1-C30)alkoxycarbonyl, (C6-C30)arylcarbonyl, di(C6-C30)arylboronyl, di(C1-C30)alkylboronyl, (C1-C30)alkyl(C6-C30)arylboronyl, (C6-C30)ar(C1-C30)alkyl, and (C1-C30)alkyl(C6-C30)aryl.

3 . The organic electroluminescent compound according to claim 1 , wherein Ar 1 and R a each independently represent any one of the substituents selected from the following Group 1:

wherein,

D1 and D2 each independently represent a benzene ring or a naphthalene ring;

X 11 represents O, S, NR 11 , or CR 12 R 13 ;

X 12 each independently represent CR 31 or N; provided that at least one X 12 is N;

X 13 each independently represent CR 32 or N;

L 11 to L 18 each independently represent a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted (3-to 30-membered)heteroarylene;

R 11 to R 22 , R 31 , and R 32 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, or a substituted or unsubstituted (C3-C30)cycloalkyl; or may be linked to an adjacent substituent to form a substituted or unsubstituted ring;

aa, ff, and gg each independently represent an integer of 1 to 5, bb represents an integer of 1 to 7, cc to ee represent an integer of 1 to 4; and

when aa to gg are 2 or more, each of R 11 to R 17 may be the same or different.

4 . The organic electroluminescent compound according to claim 1 , wherein Ar 1 and R a each independently represent any one of the substituents selected from the following Group 2:

wherein,

L is as defined of L 1 in claim 1 ; and

A 1 to A 3 each independently represent a substituted or unsubstituted (C1-C30)alkyl or a substituted or unsubstituted (C6-C30)aryl.

5 . The organic electroluminescent compound according to claim 1 , wherein, Ar 1 , R 1 to R 4 , and R a each independently represent any one of the substituents selected from the following Group 3.

6 . The organic electroluminescent compound according to claim 1 , wherein the compound represented by formulae 2, 3, and 5 is selected from the group consisting of:

7 . An organic electroluminescent device comprising the organic electroluminescent compound according to claim 1 as host materials.