KR101869657B1 - Heterocyclic compounds and electroluminescence device comprising the same - Google Patents

Abstract

The present invention provides a heterocyclic compound of formula (1) and an organic electroluminescent device comprising the same.

Description

TECHNICAL FIELD [0001] The present invention relates to a heterocyclic compound and an organic electroluminescent device including the heterocyclic compound.

The present application claims the benefit of Korean Patent Application No. 10-2016-0101354 filed on August 09, 2016, filed with the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference.

The present invention relates to a heterocyclic compound and an organic electroluminescent device including the same.

Generally, organic electroluminescent phenomenon refers to a phenomenon in which an organic material is used to convert electric energy into light energy. An organic electroluminescent device using an organic electroluminescent phenomenon generally has a structure including an anode, a cathode, and an organic material layer therebetween. Here, in order to enhance the efficiency and stability of the organic electroluminescent device, the organic material layer may have a multi-layer structure composed of different materials and may include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer. When a voltage is applied between the two electrodes in the structure of the organic electroluminescent device, holes are injected into the anode, electrons are injected into the organic layer, and excitons are formed when injected holes and electrons meet. When it falls back to the ground state, the light comes out.

Development of a new material for such an organic electroluminescent device has been continuously required.

Korean Patent Publication No. 2006-0051619

In this specification, a heterocyclic compound and an organic electroluminescent device including the same are disclosed.

One embodiment of the present disclosure provides a heterocyclic compound represented by the following Formula 1:

[Chemical Formula 1]

In Formula 1,

Any one of X1 and X2 is a direct bond and the remainder is O or S,

Any one of X3 and X4 is a direct bond and the remainder is O or S,

L1 to L3 are the same or different and are each independently a direct bond; A substituted or unsubstituted arylene group; Or a substituted or unsubstituted heteroarylene group,

a, b and c are each an integer of 1 or 2,

when a is 2, L1 is the same or different from each other,

when b is 2, L2 is the same or different from each other,

when c is 2, L < 3 > are the same or different from each other,

Ar5 is a substituted or unsubstituted aryl group; A substituted or unsubstituted heteroaryl group; Or a substituted or unsubstituted amine group,

Ar 1 to Ar 4 are the same or different and each independently represents a substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, or Ar1 and Ar2; Ar1 and L1; Ar2 and L1; Ar3 and Ar4; Ar3 and L2; Or Ar4 and L2 are bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocyclic ring, or Ar1 and Ar2, and Ar1 and L1; Ar1 and Ar2, and Ar2 and L1; Ar1 and L1, and Ar2 and L1; Ar3 and Ar4, and Ar3 and L2; Ar3 and Ar4, and Ar4 and L2; Or Ar3 and L2, and Ar4 and L2 are bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or substituted or unsubstituted heterocyclic ring, or Ar1, Ar2 and L1; Or Ar 3, Ar 4 and L 2 are bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocyclic ring,

R1 to R4 are the same or different from each other and each independently hydrogen; heavy hydrogen; A halogen group; Cyano; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted amine group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group,

d and e are each an integer of 0 to 4,

When d is 2 or more, R3 is the same or different from each other,

When e is 2 or more, R4 is the same or different from each other.

In addition, one embodiment of the present disclosure includes a first electrode; A second electrode facing the first electrode; And at least one organic compound layer disposed between the first electrode and the second electrode, wherein at least one of the organic compound layers includes a heterocyclic compound of Formula 1, A light emitting device is provided.

The heterocyclic compounds according to one embodiment of the present invention can be used as a material for an organic material layer of an organic electroluminescent device, and when applied to an organic electroluminescent device, improve the luminous efficiency, the driving voltage and / have.

1 shows an organic electroluminescent device 10 according to an embodiment of the present invention.
Fig. 2 shows an organic electroluminescent device 11 according to another embodiment of the present invention.
FIG. 3 shows mass spectrometry results of Compound 1 according to one embodiment of the present invention.
Figure 4 shows the mass spectrometry results of Compound 2 according to one embodiment of the present disclosure.
Fig. 5 shows the results of mass spectrometry of Compound 3 according to one embodiment of the present invention. Fig.
Figure 6 shows mass spectrometry results of Compound 4 according to one embodiment of the present disclosure.
7 shows mass spectrometry spectral results of Compound 5 according to one embodiment of the present invention.
Figure 8 shows the mass spectrometry results of Compound 6 according to one embodiment of the present disclosure.
Figure 9 shows mass spectrometry results of Compound 7 according to one embodiment of the present invention.
10 shows mass spectrometry spectral results of Compound 8 according to one embodiment of the present invention.
11 shows mass spectrometry results of Compound 9 according to one embodiment of the present invention.
Figure 12 shows the mass spectrometry results of Compound 10 according to one embodiment of the present disclosure.
FIG. 13 shows mass spectrometry results of Compound 11 according to one embodiment of the present invention.
14 shows the mass spectrometry results of Compound 12 according to one embodiment of the present invention.
15 shows mass spectrometry results of Compound 13 according to one embodiment of the present invention.
16 shows mass spectrometry results of Compound 14 according to one embodiment of the present invention.
17 shows mass spectrometry results of Compound 15 according to one embodiment of the present invention.
Figure 18 shows the mass spectrometry results of Compound 16 according to one embodiment of the present disclosure.
19 shows mass spectrometry results of Compound 17 according to one embodiment of the present invention.
Figure 20 shows the mass spectrometry results of compound 18 according to one embodiment of the present disclosure.

Hereinafter, the present invention will be described in more detail.

One embodiment of the present invention provides a heterocyclic compound represented by the above formula (1).

In this specification, when a part is referred to as " including " an element, it is to be understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

In this specification, when a member is located on another member, it includes not only the case where the member is in contact with the other member but also the case where another member exists between the two members.

In the present specification, examples of substituents are described below, but are not limited thereto.

In this specification, the term " substituted " means that a hydrogen atom bonded to a carbon atom of a compound is replaced with another substituent, and the position to be substituted is not limited as long as the substituent is a substitutable position, When two or more substituents are substituted, they may be the same or different.

As used herein, the term " substituted or unsubstituted " A halogen group; Cyano; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted amine group; A substituted or unsubstituted aryl group; And a substituted or unsubstituted heteroaryl group, or that at least two of the substituents exemplified above are substituted with a substituent to which they are linked, or have no substituent. For example, the "substituent group to which at least two substituents are connected" is an alkyl group substituted with a halogen group; A silyl group substituted with an alkyl group; An alkyl group substituted with an alkyl group, an aryl group substituted with an aryl group, an aryl group substituted with a silyl group, an aryl group substituted with a heteroaryl group, a heteroaryl group substituted with an alkyl group, a heteroaryl group substituted with an aryl group, A heteroaryl group; A heteroaryl group substituted with a heteroaryl group, and the like.

In the present specification, the halogen group may be F, Cl, Br, I, or the like.

In the present specification, the alkyl group may be linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 1 to 50. According to one embodiment, the alkyl group has 1 to 20 carbon atoms. According to another embodiment, the alkyl group has 1 to 10 carbon atoms. According to another embodiment, the alkyl group has 1 to 6 carbon atoms. Specific examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a n-propyl group, an isopropyl group, a butyl group, a n-butyl group, an isobutyl group, N-pentyl, 3-dimethylbutyl, 2-ethylbutyl, heptyl, n-hexyl, Cyclohexylmethyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl, n-nonyl, 2,2-dimethyl Heptyl, 1-ethylpropyl, 1,1-dimethylpropyl, isohexyl, 4-methylhexyl, 5-methylhexyl and the like.

In the present specification, the cycloalkyl group is not particularly limited, but preferably has 3 to 50 carbon atoms. According to one embodiment, the cycloalkyl group has 3 to 30 carbon atoms. According to another embodiment, the cycloalkyl group has 3 to 20 carbon atoms. According to another embodiment, the cycloalkyl group has 3 to 6 carbon atoms. Specific examples include cyclopropyl, cyclobutyl, cyclopentyl, 3-methylcyclopentyl, 2,3-dimethylcyclopentyl, cyclohexyl, 3-methylcyclohexyl, 4-methylcyclohexyl, 2,3-dimethylcyclohexyl, 4,5-trimethylcyclohexyl, 4-tert-butylcyclohexyl, cycloheptyl, cyclooctyl, and the like, but are not limited thereto.

In the present specification, the aryl group is not particularly limited, but may have from 6 to 50 carbon atoms, and the aryl group may be a monocyclic aryl group or a polycyclic aryl group. According to one embodiment, the aryl group has 6 to 30 carbon atoms. According to one embodiment, the aryl group has 6 to 20 carbon atoms. Examples of the monocyclic aryl group include, but are not limited to, a phenyl group, a biphenyl group, a terphenyl group, and the like. Examples of the polycyclic aryl group include naphthyl, anthracenyl, phenanthrenyl, pyrenyl, perylenyl, fluoranthenyl, triphenylenyl, phenalenyl, A naphthyl group, a naphthyl group, a naphthyl group, a naphthyl group, a naphthyl group, a naphthyl group, a naphthyl group, a naphthyl group,

In the present specification, the heteroaryl group includes at least one non-carbon atom and at least one hetero atom. Specifically, the hetero atom is an atom selected from the group consisting of N, P, O, S, Se, Ge and Si, Or more. The number of carbon atoms is not particularly limited, but is preferably 2 to 50 carbon atoms. According to one embodiment, the heteroaryl group has 2 to 30 carbon atoms. According to another embodiment, the heteroaryl group has 2 to 20 carbon atoms. The heteroaryl group may be monocyclic or polycyclic. Examples of the heteroaryl group include a thiophene group, a furanyl group, a pyrrolyl group, an imidazolyl group, a thiazolyl group, an oxazolyl group, an isoxazolyl group, an oxadiazolyl group, a pyridyl group, a bipyridyl group, A thiazolyl group, an acridyl group, a pyridazinyl group, a pyrazinyl group, a quinolinyl group, a quinazolinyl group, a quinoxalinyl group, a phthalazinyl group, a pyridopyrimidyl group, A benzoimidazolyl group, a benzothiazolyl group, a benzothiazolyl group, a benzothiophene group, a dibenzothiophene group, a benzoimidazolyl group, a benzoimidazolyl group, a benzimidazolyl group, A furanyl group, a dibenzofuranyl group, a naphthobenzofuranyl group, a phenanthroline group, a thiadiazolyl group, a phenothiazinyl group, an acenaphthoquinoxalyl group, an indenoquinazolyl group, an indenoisoquinolyl group Group, an indenoquinolyl group, a pyridinyl group, a phenoxazinyl group, a benzoquinazolyl group, Group, benzo Perry MIDI quinolyl group, a benzo group and Perry media include, but RY Loa acridine fluorenyl group, and the like.

In the present specification, the alkoxy group may be linear, branched or cyclic. The number of carbon atoms of the alkoxy group is not particularly limited, but is preferably 1 to 50 carbon atoms. Specific examples include methoxy, ethoxy, n-propoxy, isopropoxy, i-propyloxy, n-butoxy, isobutoxy, tert-butoxy, sec-butoxy, n-pentyloxy, neopentyloxy, But are not limited to, isopentyloxy, n-hexyloxy, 3,3-dimethylbutyloxy, 2-ethylbutyloxy, n-octyloxy, n-nonyloxy, .

In this specification, the amine group is -NH ₂ ; An alkylamine group; N-alkylarylamine groups; An arylamine group; An N-arylheteroarylamine group; An N-alkylheteroarylamine group, and a heteroarylamine group. The number of carbon atoms is not particularly limited, but is preferably 1 to 50. Specific examples of the amine group include methylamine, dimethylamine, ethylamine, diethylamine, phenylamine, naphthylamine, biphenylamine, anthracenylamine, 9- A diphenylamine group, an N-phenylnaphthylamine group, a ditolylamine group, an N-phenyltolylamine group, a triphenylamine group, an N-phenylbiphenylamine group, an N-phenylnaphthylamine group, A naphthylamine group, a naphthylamine group, an N-naphthylfluorenylamine group, an N-phenylphenanthrenylamine group, an N-biphenylphenanthrenylamine group, an N-phenylfluorenylamine group, , An N-phenanthrenyl fluorenylamine group, and an N-biphenylfluorenylamine group, but are not limited thereto.

In the present specification, examples of the arylamine group include a substituted or unsubstituted monoarylamine group, a substituted or unsubstituted diarylamine group, or a substituted or unsubstituted triarylamine group. The aryl group in the arylamine group may be a monocyclic aryl group or a polycyclic aryl group. The arylamine group having at least two aryl groups may contain a monocyclic aryl group, a polycyclic aryl group, or a monocyclic aryl group and a polycyclic aryl group at the same time. For example, the aryl group in the arylamine group may be the same as the aryl group described above.

In the present specification, examples of the heteroarylamine group include a substituted or unsubstituted monoheteroarylamine group, a substituted or unsubstituted diheteroarylamine group, or a substituted or unsubstituted triheteroarylamine group. The heteroarylamine group having two or more heteroaryl groups may include a monocyclic heteroaryl group, a polycyclic heteroaryl group, or a monocyclic heteroaryl group and a polycyclic heteroaryl group at the same time. For example, the heteroaryl group in the heteroarylamine group can be applied to the description of the above-mentioned heteroaryl group.

In the present specification, the N-alkylarylamine group means an amine group in which N of the amine group is substituted with an alkyl group and an aryl group.

In the present specification, the N-arylheteroarylamine group means an amine group in which N in the amine group is substituted with an aryl group and a heteroaryl group.

In the present specification, the N-alkylheteroarylamine group means an amine group in which N in the amine group is substituted with an alkyl group and a heteroaryl group.

In the present specification, the aryl group in the arylamine group, the aryloxy group, the aralkyl group, the arylthioxy group, the arylsulfoxy group, the arylphosphine group and the alkylaryl group may be the description of the aryl group described above.

In the present specification, the alkyl group in the alkylamine group, alkylsilyl group, alkoxy group, aralkyl group, N-arylalkylamine group, alkylthio group, alkylsulfoxy group, N-alkylheteroarylamine group, The description of the alkyl group can be applied.

In the present specification, the heteroaryl group in the N-arylheteroarylamine group and the N-alkylheteroarylamine group can be applied to the description of the above-mentioned heteroaryl group.

In the present specification, the alkenyl group may be linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 2 to 50. Specific examples include vinyl, 1-propenyl, isopropenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, Butenyl, allyl, 1-phenylvinyl-1-yl, 2-phenylvinyl-1-yl, (Diphenyl-1-yl) vinyl-1-yl, stilbenyl, stilenyl, and the like.

In the present specification, the silyl group specifically includes a trimethylsilyl group, a triethylsilyl group, a t-butyldimethylsilyl group, a vinyldimethylsilyl group, a propyldimethylsilyl group, a triphenylsilyl group, a diphenylsilyl group, However, the present invention is not limited thereto.

In the present specification, the fluorenyl group may be substituted, and adjacent groups may combine with each other to form a ring.

,

,

,

,

,

,

및

등이 될 수 있다. 다만, 이에 한정되는 것은 아니다.When the fluorenyl group and the spirobifluorenyl group are substituted,

,

,

,

,

,

,

And

And the like. However, the present invention is not limited thereto.

In the present specification, examples of the aryloxy group include a phenoxy group, a p-tolyloxy group, an m-tolyloxy group, a 3,5-dimethylphenoxy group, a 2,4,6- trimethylphenoxy group, 2-naphthyloxy group, 4-methyl-1-naphthyloxy group, 5-methyl-2-naphthyloxy group, 1- Anthryloxy group, 1-phenanthryloxy group, 3-phenanthryloxy group, 9-phenanthryloxy group and the like.

In the present specification, the description of the aryl group described above can be applied, except that the arylene group is a divalent group.

In this specification, the description of the above-mentioned heteroaryl group can be applied except that the heteroarylene group is a divalent group.

In the present specification, the substituted or unsubstituted ring which can be formed in association with the adjacent group includes a substituted or unsubstituted hydrocarbon ring, or a substituted or unsubstituted heterocycle.

In the present specification, the hydrocarbon ring may be an aromatic, aliphatic or aromatic and aliphatic condensed ring, and may be monocyclic or polycyclic, and the description of the above-mentioned cycloalkyl group or aryl group may be applied except that it is not monovalent.

In this specification, the aromatic ring may be monocyclic or polycyclic, and the description of the aryl group described above may be applied, except that it is not monovalent.

In the present specification, the hetero ring includes one or more atoms other than carbon, that is, a hetero atom. Specifically, the hetero atom includes an atom selected from the group consisting of N, P, O, S, Se, 1 or more. The heterocyclic ring may be monocyclic or polycyclic, and may be an aromatic, aliphatic or aromatic and aliphatic condensed ring, and the description of the above-mentioned heteroaryl group may be applied except that it is not monovalent.

According to one embodiment of the present invention, the formula (1) may be represented by the following formula (2).

(2)

In the above formula (2), the substituents are as defined in formula (1).

According to one embodiment of the present invention, the formula (1) may be represented by the following formula (3).

(3)

In the above formula (3), the substituents are as defined in formula (1).

According to one embodiment of the present invention, the formula (1) may be represented by any one of the following formulas (1-1) to (1-3).

[Formula 1-1]

[Formula 1-2]

[Formula 1-3]

In Formulas 1-1 through 1-3,

X5 and X6 are the same or different and each independently O or S, and the remaining substituents are the same as defined in the formula (1).

 According to one embodiment of the present disclosure, L1 to L3 are the same or different from each other, and each independently and independently of the other is a direct bond; A phenylene group; Naphthylene group; Biphenylene group; A terphenylrenylene group; A fluorenylene group substituted or unsubstituted with an alkyl group or an aryl group; Phenanthrylene group; Anthracenylene group; A divalent thiophene group; A furanylene group; A pyrrolene group substituted or unsubstituted with an alkyl group or an aryl group; Dibenzofuranyl group; A divalent dibenzothiophene group; Or a carbazolylene group substituted or unsubstituted with an alkyl group or an aryl group.

According to one embodiment of the present disclosure, L1 to L3 are the same or different from each other, and are each independently a direct bond; A phenylene group; Naphthylene group; Biphenylene group; A terphenylrenylene group; A fluorenylene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; Phenanthrylene group; Anthracenylene group; A divalent thiophene group; A furanylene group; A pyrrolene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; Dibenzofuranyl group; A divalent dibenzothiophene group; Or a carbazolylene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms.

According to one embodiment of the present disclosure, L1 and L2 are the same or different and are each independently a direct bond; A phenylene group; Naphthylene group; Biphenylene group; A terphenylrenylene group; A fluorenylene group substituted or unsubstituted with a methyl group or a phenyl group; Phenanthrylene group; Anthracenylene group; A divalent thiophene group; A furanylene group; A pyrrolene group substituted or unsubstituted with a methyl group or a phenyl group; Dibenzofuranyl group; A divalent dibenzothiophene group; Or a carbazolylene group substituted or unsubstituted with an ethyl group or a phenyl group.

According to one embodiment of the present disclosure, L1 to L3 are the same or different from each other, and are each independently a direct bond; Or may be selected from among the following structural formulas.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different and each independently represent a substituted or unsubstituted aryl group having 6 to 50 carbon atoms; Or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different and are each independently a C 1 to C 6 alkyl group substituted or unsubstituted with deuterium, a halogen group, an alkyl group, a silyl group, a cyano group, an alkoxy group, an aryl group or a heteroaryl group An aryl group having 6 to 50 carbon atoms; Or a heteroaryl group having 2 to 50 carbon atoms which is unsubstituted or substituted with a substituent selected from the group consisting of deuterium, halogen, alkyl, silyl, cyano, cycloalkyl, aryl or heteroaryl.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other and each independently represents an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group, An aryl group having 6 to 50 carbon atoms which is unsubstituted or substituted with a substituent group; Or a heteroaryl group having 2 to 50 carbon atoms which is substituted or unsubstituted with a substituent consisting of an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group or a combination of two or more thereof.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different from each other and each independently represent an alkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group, A phenyl group substituted or unsubstituted with a substituent; A biphenyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group or an alkylsilyl group; A terphenyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group or an alkylsilyl group; A naphthyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group or an alkylsilyl group; A fluorenyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group, an alkylsilyl group or an aryl group; A phenanthrenyl group; Anthracenyl group; A benzofuranyl group; A dibenzofuranyl group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A dibenzothiophene group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A carbazolyl group substituted or unsubstituted with an alkyl group or an aryl group; An alkyl group, an aryl group, a heteroaryl group or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; Pyrenyl; A fluoranthenyl group; A spirobifluorenyl group; A benzimidazolyl group substituted or unsubstituted with an alkyl group or an aryl group; A quinoxalinyl group; Or a triphenylenyl group.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different and each independently represents an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, an alkoxy group having 1 to 50 carbon atoms, a halogen group, , An alkylsilyl group having 1 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a phenyl group substituted or unsubstituted with a substituent consisting of 2 or more of these; A biphenyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group or an alkylsilyl group having 1 to 50 carbon atoms; A terphenyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group, or an alkylsilyl group having 1 to 50 carbon atoms; A naphthyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group or an alkylsilyl group having 1 to 50 carbon atoms; A fluorenyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group, an alkylsilyl group having 1 to 50 carbon atoms, or an aryl group having 6 to 50 carbon atoms; A phenanthrenyl group; Anthracenyl group; A benzofuranyl group; A dibenzofuranyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A dibenzothiophene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A carbazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A thiophene group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; Pyrenyl; A fluoranthenyl group; A spirobifluorenyl group; A benzimidazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A quinoxalinyl group; Or a triphenylenyl group.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different and each independently represents a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a trimethylsilyl group, a phenyl group, a naphthyl group, A phenyl group substituted or unsubstituted with a substituent consisting of a combination of two or more of them, a thiophene group, a dimethylfluorene group, a dibenzofurane group, a dibenzothiophene group, a carbazole group, a benzofurane group, a benzothiophene group; A biphenyl group substituted or unsubstituted with a substituent consisting of a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a trimethylsilyl group, a phenyl group, a naphthyl group or a combination of two or more thereof; A terphenyl group substituted or unsubstituted with a substituent consisting of a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a trimethylsilyl group, a phenyl group, a naphthyl group or a combination of two or more thereof; A naphthyl group substituted or unsubstituted with a substituent consisting of a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a trimethylsilyl group, a phenyl group, a naphthyl group or a combination of two or more thereof; A substituted or unsubstituted benzoyl group, a substituted or unsubstituted benzoyl group, a substituted or unsubstituted benzoyl group, a substituted or unsubstituted benzoyl group, a substituted or unsubstituted benzyl group, a substituted or unsubstituted benzyl group, A thiophene group, or a fluorenyl group substituted or unsubstituted with a substituent consisting of at least two of them; A methyl group, an ethyl group, a phenyl group, or a benzofluorenyl group substituted or unsubstituted with a substituent consisting of at least two of them; A phenanthrenyl group; Anthracenyl group; A benzofuranyl group; A methyl group, an isopropyl group, a tert-butyl group, F, a nitrile group, a cyclohexyl group; A dibenzofuranyl group substituted or unsubstituted with a phenyl group; A methyl group, an isopropyl group, a tert-butyl group, F, a nitrile group, a cyclohexyl group; A dibenzothiophene group substituted or unsubstituted with a phenyl group; A methyl group, an ethyl group, a phenyl group, or a carbazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; And examples thereof include a methyl group, ethyl group, isopropyl group, tert-butyl group, phenyl group, naphthyl group, furan group, thiophene group, dimethylfluorene group, dibenzofurane group, dibenzothiophene group, carbazole group, A thiophene group, or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Quinolyl; An isoquinol group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; Pyrenyl; A fluoranthenyl group; A spirobifluorenyl group; A methyl group, an ethyl group, a phenyl group, or a benzimidazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; A quinoxalinyl group; Or a triphenylenyl group.

According to one embodiment of the present disclosure, Ar1 to Ar4 may be the same or different from each other, and may be independently selected from the following structural formulas.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other, and at least two of Ar1 to Ar4 are substituted or unsubstituted heteroaryl groups.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different from each other, and at least two of Ar 1 to Ar 4 are substituted or unsubstituted heteroaryl groups having 2 to 50 carbon atoms.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different and at least two of Ar 1 to Ar 4 are substituted with deuterium, a halogen group, an alkyl group, a silyl group, a cyano group, a cycloalkyl group, an aryl group or a heteroaryl group Or an unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other, and at least two of Ar1 to Ar4 are an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, Or a heteroaryl group having 2 to 50 carbon atoms which is substituted or unsubstituted with a substituent consisting of at least two of them.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other, and at least two of Ar1 to Ar4 are a benzofuranyl group; A dibenzofuranyl group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A dibenzothiophene group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A carbazolyl group substituted or unsubstituted with an alkyl group or an aryl group; An alkyl group, an aryl group, a heteroaryl group or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A benzimidazolyl group substituted or unsubstituted with an alkyl group or an aryl group; Or a quinoxalinyl group.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other, and at least two of Ar1 to Ar4 are a benzofuranyl group; A dibenzofuranyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A dibenzothiophene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A carbazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A thiophene group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A benzimidazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; Or a quinoxalinyl group.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other, and at least two of Ar1 to Ar4 are a benzofuranyl group; A dibenzofuranyl group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; A dibenzothiophene group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; A methyl group, an ethyl group, a phenyl group, or a carbazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; And examples thereof include a methyl group, ethyl group, isopropyl group, tert-butyl group, phenyl group, naphthyl group, furan group, thiophene group, dimethylfluorene group, dibenzofurane group, dibenzothiophene group, carbazole group, A thiophene group, or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Quinolyl; An isoquinol group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A methyl group, an ethyl group, a phenyl group, or a benzimidazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; Or a quinoxalinyl group.

According to one embodiment of the present disclosure, Ar1 and Ar2; Ar1 and L1; Ar2 and L1; Ar3 and Ar4; Ar3 and L2; Or Ar4 and L2 may be bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocycle.

According to one embodiment of the present disclosure, Ar1 and Ar2, and Ar1 and L1; Ar1 and Ar2, and Ar2 and L1; Ar1 and L1, and Ar2 and L1; Ar3 and Ar4, and Ar3 and L2; Ar3 and Ar4, and Ar4 and L2; Or Ar3 and L2, and Ar4 and L2 may be bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocyclic ring.

According to one embodiment of the present disclosure, Arl, Ar2 and L1; Or Ar 3, Ar 4 and L 2 may be bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocyclic ring.

According to one embodiment of the present disclosure, at least one of -NAr1Ar2 and -NAr3Ar4 can be represented by the structural formula A below.

[Structural Formula A]

In formula (A) above,

은 L1 또는 L2와 결합하고,

0.0 > L1 < / RTI > or L2,

Y1 is CRaRb; NRc; O; Or S, y1 is 0 or 1, and when y1 is 0, two carbons bonded to Y1 are directly bonded,

R11 to R18, and Ra to Rc are the same or different and each independently hydrogen; heavy hydrogen; A halogen group; Cyano; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted amine group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, or adjacent substituents of R11 to R14 or R15 to R18 are bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heterocyclic ring .

According to one embodiment of the present disclosure, at least one of - (L1) a-NAr1Ar2 and - (L2) b-NAr3Ar4 may be represented by any one of the following formulas B to F.

[Structural formula B]

[Structural formula C]

[Structural formula D]

[Structural formula E]

[Structural formula F]

In the above Structural Formulas B to F,

은 모체인 카바졸 유도체와 결합하고,

Bonds with a parent carbazole derivative,

Y2 to Y4 are the same or different from each other, and each independently CRaRb; NRc; O; Or y, y2 to y4 are 0 or 1, two carbons bonded to Y2 are directly bonded when y2 is 0, two carbons bonded to Y3 are bonded directly when y3 is 0, and y4 is 0 , The two carbons bonded to Y < 4 > are bonded directly to each other,

R21 to R34, and Ra to Rc are the same or different from each other, and each independently hydrogen; heavy hydrogen; A halogen group; Cyano; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted amine group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, or adjacent substituents of R21 to R25 or R26 to R30 may be bonded to each other to form a monocyclic or polycyclic aliphatic or aromatic substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted hetero ring .

과

가 서로 동일하다.According to one embodiment of the present disclosure,

and

Are the same.

과

가 서로 상이하다.According to one embodiment of the present disclosure,

and

Are different from each other.

According to one embodiment of the present specification, Ar5 is a substituted or unsubstituted C6 to C50 aryl group; A substituted or unsubstituted C2 to C30 heteroaryl group; Or a substituted or unsubstituted amine group.

According to one embodiment of the present invention, Ar5 is a substituted or unsubstituted alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group, An aryl group having 6 to 50 carbon atoms; A heteroaryl group having 2 to 50 carbon atoms which is substituted or unsubstituted with a substituent consisting of an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group or a combination of two or more thereof; Or an amine group substituted or unsubstituted with a substituent consisting of an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group or a combination of two or more thereof.

According to one embodiment of the present invention, Ar5 is a phenyl group substituted or unsubstituted with a substituent consisting of an alkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group or a combination of two or more thereof; A biphenyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group or an alkylsilyl group; A terphenyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group or an alkylsilyl group; A naphthyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group or an alkylsilyl group; A fluorenyl group substituted or unsubstituted with an alkyl group, a halogen group, a cyano group, an alkylsilyl group or an aryl group; A phenanthrenyl group; Anthracenyl group; A dibenzofuranyl group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A dibenzothiophene group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A carbazolyl group substituted or unsubstituted with an alkyl group or an aryl group; An alkyl group, an aryl group, a heteroaryl group or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; Pyrenyl; A fluoranthenyl group; A spirobifluorenyl group substituted or unsubstituted with an alkylsilyl group; A benzimidazolyl group substituted or unsubstituted with an alkyl group or an aryl group; A quinoxalinyl group; A triphenylrenyl group; Or an alkyl group, a cycloalkyl group, an aryl group, a heteroaryl group, or an amine group substituted or unsubstituted with a substituent consisting of at least two of them.

According to one embodiment of the present invention, Ar5 is an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, an alkoxy group having 1 to 50 carbon atoms, a halogen group, a cyano group, an alkylsilyl group having 1 to 50 carbon atoms, A phenyl group substituted or unsubstituted with a substituent consisting of 2 to 50 heteroaryl groups or a combination of two or more thereof; A biphenyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group or an alkylsilyl group having 1 to 50 carbon atoms; A terphenyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group, or an alkylsilyl group having 1 to 50 carbon atoms; A naphthyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group or an alkylsilyl group having 1 to 50 carbon atoms; A fluorenyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, a halogen group, a cyano group, an alkylsilyl group having 1 to 50 carbon atoms, or an aryl group having 6 to 50 carbon atoms; A phenanthrenyl group; Anthracenyl group; A dibenzofuranyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A dibenzothiophene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A carbazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A thiophene group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; A pyridinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; Pyrenyl; A fluoranthenyl group; A spirobifluorenyl group substituted or unsubstituted with an alkylsilyl group; A benzimidazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A quinoxalinyl group; A triphenylrenyl group; Or an amine group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, a cycloalkyl group having 3 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof .

According to one embodiment of the present disclosure, Ar < 5 > can be selected from among the following structural formulas.

According to one embodiment of the present invention, Ar5 is a substituted or unsubstituted C2 to C50 heteroaryl group; Or a substituted or unsubstituted amine group.

According to one embodiment of the present invention, Ar5 is a substituted or unsubstituted C2 to C50 heteroaryl group; Or a substituted or unsubstituted amine group. Provided that Ar5 is not a pyridyl group or an indole group.

According to one embodiment of the present invention, Ar5 is a substituted or unsubstituted alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group, 2 to 50 heteroaryl groups; Or an amine group substituted or unsubstituted with a substituent consisting of an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, a halogen group, a cyano group, a silyl group, a heteroaryl group or a combination of two or more thereof. Provided that Ar5 is not a pyridyl group or an indole group.

According to one embodiment of the present invention, Ar5 is a dibenzofuranyl group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A dibenzothiophene group substituted or unsubstituted with an alkyl group or a cycloalkyl group; A carbazolyl group substituted or unsubstituted with an alkyl group or an aryl group; An alkyl group, an aryl group, a heteroaryl group or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Benzothiophene group; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A benzimidazolyl group substituted or unsubstituted with an alkyl group or an aryl group; A quinoxalinyl group; A triphenylrenyl group; Or an alkyl group, a cycloalkyl group, an aryl group, a heteroaryl group, or an amine group substituted or unsubstituted with a substituent consisting of at least two of them.

According to one embodiment of the present invention, Ar5 is a dibenzofuranyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A dibenzothiophene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A carbazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A thiophene group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof; Benzothiophene group; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A benzimidazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A quinoxalinyl group; A triphenylrenyl group; Or an amine group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, a cycloalkyl group having 3 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof .

According to one embodiment of the present invention, Ar5 is a dibenzofuranyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A dibenzothiophene group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or a cycloalkyl group having 3 to 50 carbon atoms; A carbazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A thiophene group substituted or unsubstituted with a substituent consisting of an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, a heteroaryl group having 2 to 50 carbon atoms, or a combination of two or more thereof; Benzothiophene group; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A benzimidazolyl group substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms; A quinoxalinyl group; Or a triphenylenyl group.

According to one embodiment of the present invention, Ar5 is a dibenzofuranyl group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; A dibenzothiophene group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; A methyl group, an ethyl group, a phenyl group, or a carbazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; And examples thereof include a methyl group, ethyl group, isopropyl group, tert-butyl group, phenyl group, naphthyl group, furan group, thiophene group, dimethylfluorene group, dibenzofurane group, dibenzothiophene group, carbazole group, A thiophene group, or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; Benzothiophene group; Quinolyl group; An isoquinolyl group; A pyridazinyl group; Triazinyl groups; A pyrimidinyl group; Benzoxazolyl group; Benzothioxazolyl group; Benzooxathiol groups; A methyl group, an ethyl group, a phenyl group, or a benzimidazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; A quinoxalinyl group; A triphenylrenyl group; Or an amine group substituted or unsubstituted with a phenyl group or a naphthobenzofuran group.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different from each other, and at least two of Ar 1 to Ar 4 are substituted or unsubstituted heteroaryl groups, or Ar 5 is a substituted or unsubstituted heteroaryl group, Gt; is an unsubstituted amine group, provided that Ar5 is not a pyridyl group or an indole group.

According to one embodiment of the present invention, Ar 1 to Ar 4 are the same or different from each other, and at least two of Ar 1 to Ar 4 are substituted or unsubstituted benzofuranyl; A substituted or unsubstituted dibenzofuranyl group; A substituted or unsubstituted thiazinyl group; A substituted or unsubstituted pyridazinyl group; A substituted or unsubstituted dibenzothiophene group; A substituted or unsubstituted benzoxathiol group; A substituted or unsubstituted quinolyl group; A substituted or unsubstituted thiophene group; A substituted or unsubstituted carbazolyl group; A substituted or unsubstituted furanyl group; Or a substituted or unsubstituted benzofuranyl group,

Ar5 is a substituted or unsubstituted carbazole group; A substituted or unsubstituted dibenzofurane group; A substituted or unsubstituted benzimidazole group; A substituted or unsubstituted benzothiophene group; A substituted or unsubstituted dibenzothiophene group; Or a substituted or unsubstituted amine group.

According to one embodiment of the present invention, Ar1 to Ar4 are the same or different from each other, and at least two of Ar1 to Ar4 are a benzofuranyl group; A dibenzofuranyl group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; Triazinyl groups; A pyridazinyl group; A pyridinyl group; A dibenzothiophene group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; Benzooxathiol groups; Quinolyl group; And examples thereof include a methyl group, ethyl group, isopropyl group, tert-butyl group, phenyl group, naphthyl group, furan group, thiophene group, dimethylfluorene group, dibenzofurane group, dibenzothiophene group, carbazole group, A thiophene group, or a thiophene group substituted or unsubstituted with a substituent consisting of at least two of them; A methyl group, an ethyl group, a phenyl group, or a carbazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; Or a furan group,

Ar5 represents a carbamoyl group substituted or unsubstituted with a substituent consisting of a methyl group, an ethyl group, a phenyl group, or a combination of two or more of them; A dibenzofuranyl group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; A methyl group, an ethyl group, a phenyl group, or a benzimidazolyl group substituted or unsubstituted with a substituent consisting of at least two of them; Benzothiophene group; A dibenzothiophene group substituted or unsubstituted with a methyl group, an isopropyl group, a tert-butyl group, an F, a nitrile group, a cyclohexyl group, or a phenyl group; Or an amine group substituted or unsubstituted with a phenyl group or a naphthobenzofuran group

According to one embodiment of the present disclosure, R1 to R4 are the same or different from each other, and each independently hydrogen; heavy hydrogen; A substituted or unsubstituted alkyl group having 1 to 40 carbon atoms; A substituted or unsubstituted cycloalkyl group having 3 to 60 carbon atoms; A substituted or unsubstituted aryl group having 6 to 50 carbon atoms; Or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present disclosure, R1 to R4 are the same or different from each other, and each independently hydrogen; Or deuterium.

According to one embodiment of the present disclosure, R 1 to R 4 are hydrogen.

According to another embodiment of the present invention, the heterocyclic compound of Formula 1 may be represented by one of the following structural formulas.

According to one embodiment of the present invention, the heterocyclic compound of Formula 1 may be prepared according to the following reaction scheme, but is not limited thereto. In the following reaction formula, the kind and number of substituent groups can be determined by appropriately selecting a starting material known to a person skilled in the art. The type of reaction and the reaction conditions may be those known in the art.

According to one embodiment of the present disclosure, a basic synthesis scheme is described in Tetrahedron 2011, 67 , 3685-3689 Org . Lett . 2012, 14 , 1500-1503, and the synthesis route when the compound is in line symmetry can be simply expressed as follows.

The synthesis route when the compound is not a symmetric structure can be simply shown as follows.

In the above two schemes, one of X and Y represents a direct bond and the other represents O or S. [

According to one embodiment of the present disclosure, there is provided a liquid crystal display comprising: a first electrode; A second electrode facing the first electrode; And at least one organic compound layer provided between the first electrode and the second electrode, wherein at least one of the organic compound layers includes the above-described heterocyclic compound .

According to an embodiment of the present invention, the organic material layer of the organic electroluminescent device may have a single-layer structure, but may have a multi-layer structure in which two or more organic material layers are stacked. For example, the organic electroluminescent device of the present invention may have a structure including a hole injection layer, a hole transporting layer, an electron blocking layer, a light emitting layer, a hole blocking layer, an electron transporting layer, and an electron injecting layer as an organic material layer. However, the structure of the organic electroluminescent device is not limited thereto and may include fewer or larger numbers of organic layers.

For example, the structure of the organic electroluminescent device of the present invention may have a structure as shown in FIGS. 1 and 2, but the present invention is not limited thereto.

1 illustrates a structure of an organic electroluminescent device 10 in which a first electrode 30, a light emitting layer 40, and a second electrode 50 are sequentially stacked on a substrate 20. 1 is an exemplary structure of an organic electroluminescent device according to an embodiment of the present invention, and may further include another organic layer.

2 shows a structure in which a first electrode 30, a hole injection layer 60, a hole transport layer 70, a light emitting layer 40, an electron transport layer 80, an electron injection layer 90 and a second electrode 50 are stacked in this order on an organic light emitting display. 2 is an exemplary structure according to an embodiment of the present invention, and may further include another organic layer.

According to one embodiment of the present invention, the organic layer includes a light emitting layer, and the light emitting layer includes a heterocyclic compound represented by the general formula (1).

According to one embodiment of the present invention, the organic layer includes a light emitting layer, and the light emitting layer includes a dopant and a host.

According to an embodiment of the present invention, the organic layer includes a light emitting layer, and the light emitting layer includes the heterocyclic compound represented by the formula (1) as a dopant in the light emitting layer.

According to one embodiment of the present invention, the organic material layer includes a light emitting layer, and the light emitting layer includes the heterocyclic compound represented by Formula 1 as a dopant of the light emitting layer, and the compound represented by Formula 4 or 5 .

According to an embodiment of the present invention, the organic material layer includes a light emitting layer, the light emitting layer includes the heterocyclic compound, and the light emitting layer further comprises a host compound represented by the following Chemical Formula 4 or 5. In this case, the heterocyclic compound may be contained in an amount of 0.1 to 15% by weight, more preferably 1 to 10% by weight, more preferably 2 to 10% by weight, based on the total weight of the host and the dopant included in the light- By weight to 10% by weight, and more preferably from 2% by weight to 6% by weight.

According to one embodiment of the present invention, in the light emitting layer of the organic material layer, the heterocyclic compound may include 4% by weight based on the total weight of the host and the dopant in the light emitting layer.

According to an embodiment of the present invention, the organic layer includes a light emitting layer, and the light emitting layer further includes a compound represented by the following general formula (4).

[Chemical Formula 4]

In Formula 4,

R11 is hydrogen; heavy hydrogen; A halogen group; Cyano; A nitro group; A hydroxy group; An aryloxy group; An alkyloxy group; Arylthioxy group; An alkylsulfoxy group; Arylsulfoxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted alkylamine group; A substituted or unsubstituted aralkylamine group; A substituted or unsubstituted heteroarylamine group; A substituted or unsubstituted arylamine group; A substituted or unsubstituted arylheteroarylamine group; A substituted or unsubstituted arylphosphine group; A substituted or unsubstituted aralkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, x is an integer of 0 to 6, and when x is 2 or more, R11 is the same or different from each other,

L11 to L14 are the same or different and are each independently a direct bond; And h, i, j and k are each an integer of 1 or 2, and when h is 2, L11 is the same or different, and when i is 2, L12 is the same or different from each other And when j is 2, L13 are the same or different, and when k is 2, L14 are the same or different from each other,

Ar11 to Ar14 are the same or different and each independently represents a substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group.

According to one embodiment of the present disclosure, R11 is selected from the group consisting of hydrogen; heavy hydrogen; A halogen group; Cyano; A hydroxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted alkylamine group; A substituted or unsubstituted aralkylamine group; A substituted or unsubstituted heteroarylamine group; A substituted or unsubstituted arylamine group; A substituted or unsubstituted arylheteroarylamine group; A substituted or unsubstituted arylphosphine group; A substituted or unsubstituted aralkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group.

According to one embodiment of the present disclosure, R11 is selected from the group consisting of hydrogen; heavy hydrogen; A halogen group; Cyano; A hydroxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group.

According to one embodiment of the present disclosure, R11 is selected from the group consisting of hydrogen; heavy hydrogen; A halogen group; Cyano; A hydroxy group; A substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; A substituted or unsubstituted aryl group having 6 to 50 carbon atoms; Or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present disclosure, R11 is hydrogen.

According to one embodiment of the present disclosure, L11 to L14 are the same or different and are each independently a direct bond; Or a substituted or unsubstituted arylene group having 6 to 50 carbon atoms.

According to one embodiment of the present disclosure, L11 to L14 are the same or different and are each independently a direct bond; A substituted or unsubstituted phenylene group; Or a substituted or unsubstituted naphthylene group.

According to one embodiment of the present disclosure, L11 to L14 are the same or different and are each independently a direct bond; A phenylene group; Or a naphthylene group.

According to one embodiment of the present invention, Ar11 to Ar14 are the same or different and each independently represent a substituted or unsubstituted C6 to C50 aryl group; Or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present invention, Ar11 to Ar14 are the same or different and each independently represents an aryl group having 6 to 50 carbon atoms or an aryl group having 6 to 50 carbon atoms substituted or unsubstituted with a heteroaryl group having 2 to 50 carbon atoms ; Or a heteroaryl group having 2 to 50 carbon atoms substituted or unsubstituted with an aryl group having 6 to 50 carbon atoms or a heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present invention, Ar11 to Ar14 are the same or different and are each independently a substituted or unsubstituted phenyl group; A substituted or unsubstituted biphenyl group; A substituted or unsubstituted naphthyl group; A substituted or unsubstituted thiophenyl group; A substituted or unsubstituted naphthobenzofuran group; Or a substituted or unsubstituted indolocarbazole group.

According to one embodiment of the present invention, Ar11 to Ar14 are the same or different and are each independently a phenyl group substituted or unsubstituted with an aryl group, a heteroaryl group, or a substituent composed of at least two of them; Biphenyl group; A naphthyl group substituted or unsubstituted with an aryl group; A thiophenyl group substituted or unsubstituted with an aryl group; A naphthobenzofuran group; Or an indolocarbazole group.

According to one embodiment of the present invention, the formula (4) may be represented by any one selected from the following compounds.

According to one embodiment of the present invention, the organic layer includes a light emitting layer, and the light emitting layer further includes a compound represented by the following general formula (5).

[Chemical Formula 5]

In Formula 5,

R12 is hydrogen; heavy hydrogen; A halogen group; Cyano; A nitro group; A hydroxy group; An aryloxy group; An alkyloxy group; Arylthioxy group; An alkylsulfoxy group; Arylsulfoxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted alkylamine group; A substituted or unsubstituted aralkylamine group; A substituted or unsubstituted heteroarylamine group; A substituted or unsubstituted arylamine group; A substituted or unsubstituted arylheteroarylamine group; A substituted or unsubstituted arylphosphine group; A substituted or unsubstituted aralkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, y is an integer of 0 to 7, R12 in which y is 2 or more are the same or different,

L21 to L23 are the same or different, and are each independently a direct bond; M, n, and o are each an integer of 1 or 2, and when m is 2, L21 is the same or different, and when n is 2, L22 is the same or different from each other, when o is 2, L23 are the same or different from each other,

Ar21 to Ar23 are the same or different and each independently represents a substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group.

According to one embodiment of the present disclosure, R12 is selected from the group consisting of hydrogen; heavy hydrogen; A halogen group; Cyano; A hydroxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted alkylamine group; A substituted or unsubstituted aralkylamine group; A substituted or unsubstituted heteroarylamine group; A substituted or unsubstituted arylamine group; A substituted or unsubstituted arylheteroarylamine group; A substituted or unsubstituted arylphosphine group; A substituted or unsubstituted aralkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group.

According to one embodiment of the present disclosure, R12 is selected from the group consisting of hydrogen; heavy hydrogen; A halogen group; Cyano; A hydroxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group.

According to one embodiment of the present disclosure, R12 is selected from the group consisting of hydrogen; heavy hydrogen; A halogen group; Cyano; A hydroxy group; A substituted or unsubstituted alkyl group having 1 to 50 carbon atoms; A substituted or unsubstituted aryl group having 6 to 50 carbon atoms; Or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present disclosure, R12 is hydrogen.

According to one embodiment of the present invention, L21 to L23 are the same or different from each other, and each independently is a direct bond; Or a substituted or unsubstituted arylene group having 6 to 50 carbon atoms.

According to one embodiment of the present invention, L21 to L23 are the same or different from each other, and each independently is a direct bond; A substituted or unsubstituted phenylene group; Or a substituted or unsubstituted naphthylene group.

According to one embodiment of the present invention, L21 to L23 are the same or different from each other, and each independently is a direct bond; A phenylene group; Or a naphthylene group.

According to one embodiment of the present disclosure, L21 to L23 are direct bonds.

According to one embodiment of the present invention, Ar 21 to Ar 23 are the same or different and each independently represent a substituted or unsubstituted aryl group having 6 to 50 carbon atoms; Or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present invention, Ar21 to Ar23 are the same or different and each independently represent an aryl group having 6 to 50 carbon atoms, which is substituted or unsubstituted with an alkyl group, an aryl group or a heteroaryl group; Or a heteroaryl group having 2 to 50 carbon atoms substituted or unsubstituted with an alkyl group, an aryl group or a heteroaryl group.

According to one embodiment of the present invention, Ar 21 to Ar 23 are the same or different and each independently represents an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms An aryl group having 6 to 50 carbon atoms; Or a heteroaryl group having 2 to 50 carbon atoms substituted or unsubstituted with an alkyl group having 1 to 50 carbon atoms, an aryl group having 6 to 50 carbon atoms, or a heteroaryl group having 2 to 50 carbon atoms.

According to one embodiment of the present invention, the formula (5) may be represented by any one selected from the following compounds.

According to an embodiment of the present invention, the organic material layer may further include at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer.

The organic electroluminescent device of the present invention can be manufactured by materials and methods known in the art except that at least one of the organic layers includes the compound of the present invention, that is, the heterocyclic compound represented by the above formula (1) have.

When the organic electroluminescent device includes a plurality of organic layers, the organic layers may be formed of the same material or different materials.

For example, the organic electroluminescent device of the present invention can be manufactured by sequentially laminating a first electrode, an organic material layer, and a second electrode on a substrate. At this time, a metal or a metal oxide having conductivity or an alloy thereof is deposited on the substrate by a physical vapor deposition (PVD) method such as sputtering or e-beam evaporation Forming a first electrode, forming an organic material layer including a hole injecting layer, a hole transporting layer, a light emitting layer, and an electron transporting layer on the first electrode, and depositing a material usable as a second electrode thereon. In addition to such a method, an organic electroluminescent device can be formed by sequentially depositing a second electrode material, an organic material layer, and a first electrode material on a substrate.

In addition, the heterocyclic compound represented by Formula 1 may be formed into an organic layer by a solution coating method as well as a vacuum evaporation method in the production of an organic electroluminescent device. Here, the solution coating method refers to spin coating, dip coating, doctor blading, inkjet printing, screen printing, spraying, roll coating and the like, but is not limited thereto.

According to one embodiment of the present invention, the first electrode is an anode and the second electrode is a cathode.

According to another embodiment of the present invention, the first electrode is a cathode and the second electrode is a cathode.

As the anode material, a material having a large work function is preferably used so that hole injection can be smoothly conducted into the organic material layer. Specific examples of the cathode material that can be used in the present invention include metals such as vanadium, chromium, copper, zinc, and gold, or alloys thereof; Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), and indium zinc oxide (IZO); ZnO: Al or SnO _2: a combination of a metal and an oxide such as Sb; Conductive polymers such as poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (PEDOT), polypyrrole and polyaniline.

As the negative electrode material, a material having a small work function is preferably used to facilitate electron injection into the organic material layer. Specific examples of the negative electrode material usable in the present invention include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead, ; Layer structure materials such as LiF / Al, LiO ₂ / Al, and Mg / Ag, but are not limited thereto.

The hole injecting layer is a layer for injecting holes from an electrode. The hole injecting material has a hole injecting effect, and has a hole injecting effect on the light emitting layer or a light emitting material. A compound which prevents migration of an exciton to an electron injecting layer or an electron injecting material and is also excellent in a thin film forming ability is preferable. It is preferable that the highest occupied molecular orbital (HOMO) of the hole injecting material be between the work function of the anode material and the HOMO of the surrounding organic layer. Specific examples of the hole injecting material include metal porphyrin, oligothiophene, arylamine-based organic materials, hexanitrile hexaazatriphenylene-based organic materials, quinacridone-based organic materials, and perylene- , Anthraquinone, polyaniline and polythiophene-based conductive polymers, but the present invention is not limited thereto.

The hole transport layer is a layer that transports holes from the hole injection layer to the light emitting layer. The hole transport material is a material capable of transporting holes from the anode or the hole injection layer to the light emitting layer. The material is suitable. Specific examples include arylamine-based organic materials, conductive polymers, and block copolymers having a conjugated portion and a non-conjugated portion together, but are not limited thereto.

The light emitting material of the light emitting layer is preferably a material capable of emitting light in the visible light region by transporting and receiving holes and electrons from the hole transporting layer and the electron transporting layer, respectively, and having high quantum efficiency for fluorescence or phosphorescence. Specific examples include 8-hydroxyquinoline aluminum complex (Alq ₃ ); Carbazole-based compounds; Dimerized styryl compounds; BAlq; 10-hydroxybenzoquinoline-metal compounds; Benzoxazole, benzothiazole and benzimidazole compounds; Polymers of poly (p-phenylenevinylene) (PPV) series; Spiro compounds; Polyfluorene, rubrene, and the like, but are not limited thereto.

The light emitting layer may include a host material and a dopant material.

The host material may be a compound represented by the above formula (4) or (5), a condensed aromatic ring derivative, or a heterocyclic compound. Specific examples of the condensed aromatic ring derivatives include anthracene derivatives, pyrene derivatives, naphthalene derivatives, pentacene derivatives, phenanthrene compounds, and fluoranthene compounds. Examples of the heterocyclic compound include carbazole derivatives, dibenzofuran derivatives, Furan compounds, pyrimidine derivatives, and the like, but are not limited thereto.

Examples of the dopant material include a heterocyclic compound, an aromatic amine derivative, a styrylamine compound, a boron complex, a fluoranthene compound, and a metal complex represented by the formula (1). Specific examples of the aromatic amine derivatives include condensed aromatic ring derivatives having substituted or unsubstituted arylamino groups, and examples thereof include pyrene, anthracene, chrysene, and peripherrhene having an arylamino group. Examples of the styrylamine compound include substituted or unsubstituted Wherein at least one aryl vinyl group is substituted with at least one aryl vinyl group, and at least one substituent selected from the group consisting of an aryl group, a silyl group, an alkyl group, a cycloalkyl group and an arylamino group is substituted or unsubstituted. Specific examples thereof include, but are not limited to, styrylamine, styryldiamine, styryltriamine, styryltetraamine, and the like. Examples of the metal complex include iridium complex, platinum complex, and the like, but are not limited thereto.

The electron transporting layer is a layer that receives electrons from the electron injecting layer and transports electrons to the light emitting layer. The electron transporting material is a material capable of transferring electrons from the cathode well to the light emitting layer. Do. Specific examples of the electron transporting material include an Al complex of 8-hydroxyquinoline; Complexes containing Alq ₃ ; Organic radical compounds; Hydroxyflavone-metal complexes, and the like, but are not limited thereto. The electron transporting layer can be used with any desired cathode material as used according to the prior art. In particular, an example of a suitable cathode material is a conventional material having a low work function followed by an aluminum layer or a silver layer. Specifically cesium, barium, calcium, ytterbium and samarium, in each case followed by an aluminum or silver layer.

The electron injection layer is a layer for injecting electrons from the electrode. The electron injection layer has an ability to transport electrons, has an electron injection effect from the cathode, and has an excellent electron injection effect with respect to the light emitting layer or the light emitting material. A compound which prevents migration to a layer and is excellent in a thin film forming ability is preferable. Specific examples thereof include fluorenone, anthraquinodimethane, diphenoquinone, thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, perylenetetracarboxylic acid, preorenylidene methane, A complex compound and a nitrogen-containing five-membered ring derivative, but are not limited thereto.

Examples of the metal complex compound include 8-hydroxyquinolinato lithium, bis (8-hydroxyquinolinato) zinc, bis (8-hydroxyquinolinato) copper, bis (8- Tris (8-hydroxyquinolinato) aluminum, tris (2-methyl-8-hydroxyquinolinato) aluminum, tris (8- hydroxyquinolinato) gallium, bis (10- Quinolinato) beryllium, bis (10-hydroxybenzo [h] quinolinato) zinc, bis (2-methyl-8- quinolinato) chlorogallium, bis (2-methyl-8-quinolinato) (2-naphtholato) gallium, and the like, But is not limited thereto.

The organic electroluminescent device according to the present invention may be a front emission type, a back emission type, or a both-sided emission type, depending on the material used.

Hereinafter, the present invention will be described in detail by way of examples with reference to the drawings. However, the embodiments according to the present disclosure can be modified in various other forms, and the scope of the present specification is not construed as being limited to the embodiments described below. Embodiments of the present disclosure are provided to more fully describe the present disclosure to those of ordinary skill in the art.

< Manufacturing example  1> Synthesis of intermediates A to V

1-1) Synthesis of intermediate A

(8.7 g, 0.024 mol) was dissolved in dimethylformamide (100 ml), and then methanesulfonyl chloride (MsCl, 5.5 ml, 0.071 mol) was added to the solution, Pyridine (9.6 ml, 0.118 mol) was slowly added dropwise at room temperature, and the mixture was stirred at 70 ° C for 4 hours. Excess water was added to the reaction solution to precipitate and then extracted with ethyl acetate. The extracted organic layer was dried over anhydrous magnesium sulfate and then recrystallized with ethanol (EtOH) to obtain Intermediate A (9.06 g, 73%).

1-2) Synthesis of intermediate B

Except that 4,4'-biphenylbenzofuran-3,3'-diol was used instead of 1,1'-biphenylbenzofuran-2,2'-diol, Intermediate B was synthesized in the same manner as in 1-1) .

1-3) Synthesis of intermediate C

Except that 1,1'-biphenylbenzothiophene-2,2'-diol was used in place of 1,1'-biphenylbenzidine-2,2'-diol, the intermediate C .

1-4) Synthesis of intermediate D

Except that 4,4'-biphenylbenzothiophene-3,3'-diol was used in place of 1,1'-biphenylbenzofuran-2,2'-diol, Intermediate D .

1-5) Synthesis of Intermediates E and F

The obtained intermediate A (4 g, 7.66 mmol) and 2-naphthylamine (1.25 g, 6.39 mmol) were dissolved in 15 ml of xylene and potassium phosphate (8.12 g, 38.0 mmol) and Pd ₂ (dba) ₃ (0.70 g, 0.76 mmol), Xanthos (Xantphos; 0.89 g, 1.53 mmol) were further added, and then the mixture was stirred at 120 캜 for 72 hours in a sealed state. After cooling to room temperature, the organic layer was filtered through a celite pad and then distilled under reduced pressure to remove xylene and extracted with dichloromethane. After the extraction, water was removed, and hexane was added to leave a small amount of the solvent. Intermediate E (2.0 g, 58%) was obtained.

The resulting intermediate E (2 g, 4.73 mmol) was dissolved in 100 mL of chloroform, and a solution of bromine (0.5 mL, 9.9 mmol) in chloroform (10 mL) was added slowly. And stirred at room temperature for 12 hours. Methanol was added to the reaction solution, and the precipitated solid was filtered to obtain Intermediate F (2.3 g, 85%).

1-6) Synthesis of Intermediate G and H

Intermediate G was obtained in the same manner as in 1-5) above, except that N1, N1-diphenylbenzene-1,4-diamine was used instead of 2-naphthylamine. Intermediate H was then obtained in the same manner using Intermediate G instead of Intermediate E.

1-7) Synthesis of Intermediate I and J

Intermediate I was obtained in the same manner as in 1-5) above except that Intermediate B was used instead of Intermediate A and dibenzofuran-2-amine was used instead of 2-naphthylamine. Intermediate J was then obtained in the same manner using Intermediate I instead of Intermediate E.

1-8) Synthesis of intermediates K and L

Intermediate K was obtained in the same manner as in 1-7) except that N1, N1-diphenylbenzene-1,4-diamine was used instead of dibenzofuran-2-amine. Intermediate L was then obtained in the same manner using Intermediate K instead of Intermediate I.

1-9) Synthesis of Intermediates M and N

Intermediate M was obtained in the same manner as in 1-5) above, except that Intermediate C was used instead of Intermediate A and pyridin-4-amine was used instead of 2-naphthylamine. Intermediate N was then obtained in the same manner using Intermediate M instead of Intermediate E.

Synthesis of Intermediates O and P

Intermediate O was obtained in the same manner as in (1-5) above, except that Intermediate D was used instead of Intermediate A. Intermediate P was then obtained in the same manner using Intermediate O instead of Intermediate E.

1-11) Synthesis of Intermediate Q and R

Intermediate Q was obtained in the same manner as in 1-5) above, except that Intermediate D was used instead of Intermediate A and 3- (carbazol-9-yl) aniline was used instead of 2-naphthylamine. Intermediate R was then obtained in the same manner using Intermediate Q instead of Intermediate E.

1-12) Synthesis of Intermediates S and T

To a pressurized flask was added bis (benzofuro) [2,3-c: 2 ', 3'-g] carbazole (4g, 11.52mmol) and 2-bromonaphthalene (2.87g, 13.82mmol) ), Potassium phosphate (8.12 g, 38.0 mmol), Pd ₂ (dba) ₃ (0.70 g, 0.76 mmol) and Xanthophos (0.89 g, 1.53 mmol) were further added, Lt; / RTI &gt; for 72 hours. After cooling to room temperature, the organic layer was filtered through a celite pad and then distilled under reduced pressure to remove xylene and extracted with dichloromethane. After the extraction, water was removed and hexane was added to a small amount of the solvent to obtain Intermediate S (4.19 g, 86%).

The resulting intermediate S (3 g, 7 mmol) was dissolved in 150 mL of chloroform, and a solution of bromine (0.8 mL, 14.88 mmol) in 20 mL of chloroform was added slowly. And stirred at room temperature for 12 hours. Methanol was added to the reaction solution, and the precipitated solid was filtered to obtain Intermediate T (3.25 g, 79%).

1-13) Synthesis of Intermediates U and V

Intermediate U was obtained in the same manner as in 1-12) except that 2-bromodibenzofuran was used instead of 2-bromonaphthalene. Intermediate V was then obtained in the same manner using Intermediate U instead of Intermediate S.

< Manufacturing example  2> Synthesis of compounds 1 to 18

2-1) Synthesis of Compound 1

(5.48 g, 25.8 mmol), Pd ₂ (dba) ₃ (0.70 g, 25.8 mmol) was dissolved in 30 ml of xylene. To the flask was added a solution of intermediate F (3 g, 5.16 mmol) and diphenylamine 0.76 mmol), Xanthos (Xantphos; 0.89 g, 1.53 mmol) were further added, and the mixture was stirred at 120 캜 for 72 hours in a sealed state. After cooling to room temperature, the organic layer was filtered through a celite pad and then distilled under reduced pressure to remove xylene and extracted with dichloromethane. After extraction, water was removed, and hexane was added to a small amount of a solvent to obtain Compound 1 (2.46 g, 63%). (MS [M + H] = 809)

The results of mass spectrometry of Compound 1 are shown in Fig.

2-2) Synthesis of Compound 2

Compound 2 was obtained in the same manner as in 2-1) above, except that N-phenyldibenzofuran-2-amine was used instead of diphenylamine. (MS [M + H] &lt; - &gt; = 989)

The results of mass spectrometry of Compound 2 are shown in Fig.

2-3) Synthesis of Compound 3

Compound 3 was obtained in the same manner as in 2-1), except that Intermediate H was used instead of Intermediate F and N- (4-tert-butylphenyl) dibenzothiophen-3-amine was used instead of diphenylamine . (MS [M + H] &lt; + &gt; = 1250)

The results of mass spectrometry of Compound 3 are shown in Fig.

2-4) Synthesis of Compound 4

Except that 9,9-dimethyl-N-phenylfluorene-2-amine was used instead of N- (4-tert-butylphenyl) dibenzothiophene-3-amine Compound 4 was obtained. (MS [M + H] &lt; - &gt; = 1158)

The results of mass spectrometry of Compound 4 are shown in Fig.

2-5) Synthesis of Compound 5

Compound 5 was obtained in the same manner as in 2-1), except that Intermediate J was used instead of Intermediate F and bis (4-tert-butylphenyl) amine was used instead of diphenylamine. (MS [M + H] = 1073)

The results of mass spectrometry of Compound 5 are shown in Fig.

2-6) Synthesis of Compound 6

Compound 6 was obtained in the same manner as in 2-5) except that carbazole was used in place of bis (4-tert-butylphenyl) amine. (MS [M + H] = 845)

The results of mass spectrometry of Compound 6 are shown in Fig.

2-7) Synthesis of Compound 7

Compound 7 was obtained in the same manner as in 2-1), except that Intermediate L was used instead of Intermediate F and di (1,1'-biphenyl) -4-amine was used instead of diphenylamine. (MS [M + H] = 1230)

The results of mass spectrometry of Compound 7 are shown in Fig.

2-8) Synthesis of Compound 8

Intermediate L (2.0 g, 2.67 mmol) and (4-diphenylaminophenyl) boronic acid (1.93 g, 6.68 mmol) were placed in a flask and dissolved in 30 mL of dioxane. (1.85 g, 13.36 mmol) was dissolved in 10 mL of water, and the mixture was refluxed with bis (tris (tert-butylphosphine) palladium (6.8 mg, 0.013 mmol) and refluxed for 6 hours. The mixture was extracted with 200 mL of water and 300 mL of toluene, and the organic layer was concentrated. The reaction mixture was separated and purified by column chromatography to obtain Compound 8. (MS [M + H] &lt; + &gt; = 1078)

The results of mass spectrometry of Compound 8 are shown in Fig.

2-9) Synthesis of Compound 9

Compound 9 was obtained in the same manner as in 2-1) above, except that Intermediate N was used instead of Intermediate F. [ (MS [M + H] = 792)

The results of mass spectrometry of Compound 9 are shown in Fig.

2-10) Synthesis of Compound 10

Compound 10 was obtained in the same manner as in 2-9) above except that bis (4-trimethylsilylphenyl) amine was used in place of diphenylamine. (MS [M + H] &lt; - &gt; = 1081)

The results of mass spectrometry of Compound 10 are shown in Fig.

2-11) Synthesis of Compound 11

Compound 11 was obtained in the same manner as in 2-1), except that Intermediate P was used instead of Intermediate F and (4-benzofuran-2-yl) -N-phenylamine was used instead of diphenylamine. (MS [M + H] = 1073)

The mass spectral analysis results of the compound 11 are shown in Fig.

2-12) Synthesis of Compound 12

(Dibenzofuran-4-yl) amine was used in place of (4-benzofuran-2-yl) -N-phenylamine. (MS [M + H] &lt; + &gt; = 1201)

The results of mass spectrometry of Compound 12 are shown in Fig.

2-13) Synthesis of Compound 13

Compound 13 was obtained in the same manner as in 2-1) except that Intermediate R was used instead of Intermediate F and N-phenyl-4- (5-phenylfuran-2-yl) aniline was used in place of diphenylamine. (MS [M + H] &lt; + &gt; = 1241)

The results of mass spectrometry of Compound 13 are shown in Fig.

2-14) Synthesis of Compound 14

The same procedure as in 2-8) was repeated except that Intermediate R was used instead of Intermediate L and (7- (diphenylamino) dibenzofuran-3-yl) boronic acid was used instead of (4-diphenylaminophenyl) Compound 14 was obtained. (MS [M + H] = 1289)

The mass spectral analysis results of the compound 14 are shown in Fig.

2-15) Synthesis of Compound 15

Compound 15 was obtained in the same manner as in 2-1) except for using Intermediate T instead of Intermediate F and using 4- (naphthalen-2-yl) -N-phenylaniline instead of diphenylamine. (MS [M + H] = 1061)

The mass spectrometry results of the compound 15 are shown in Fig.

2-16) Synthesis of Compound 16

Compound 16 was obtained in the same manner as in 2-15) except that 9-ethyl-N-phenylcarbazole-2-amine was used instead of 4- (naphthalen-2-yl) -N-phenylaniline. (MS [M + H] = 1043)

The mass spectral analysis results of the compound 16 are shown in Fig.

2-17) Synthesis of Compound 17

Compound 17 was obtained in the same manner as in 2-1), except that Intermediate V was used instead of Intermediate F and bis (4-tert-butylphenyl) amine was used instead of diphenylamine. (MS [M + H] = 1073)

The mass spectrometry spectrum of Compound 17 is shown in Fig.

2-18) Synthesis of Compound 18

Compound 18 was obtained in the same manner as in 2-16) above except that N-phenylnaphthalene-2-amine was used instead of diphenylamine. (MS [M + H] = 949)

The mass spectral analysis results of the compound 18 are shown in Fig.

< Experimental Example > Comparative Example  1 to 3 and Example  1 to 18

< Comparative Example  1>

The glass substrate coated with ITO (indium tin oxide) film with a thickness of 1,500 Å was immersed in distilled water containing detergent and washed with ultrasonic waves. At this time, Fischer Co. product was used as a detergent, and distilled water filtered by a filter of Millipore Co. was used as distilled water. After the ITO was washed for 30 minutes, ultrasonic washing was repeated 10 times with distilled water twice. After the distilled water was washed, it was ultrasonically washed with a solvent of isopropyl alcohol, acetone, and methanol, dried, and then transported to a plasma cleaner. Further, the substrate was cleaned using oxygen plasma for 5 minutes, and then the substrate was transported by a vacuum evaporator.

Hexanitrile hexaazatriphenylene (HAT) of the following chemical formula was thermally vacuum deposited on the prepared ITO transparent electrode to a thickness of 500 Å to form a hole injection layer.

4,4'-bis [N- (1-naphthyl) -N-phenylamino] biphenyl (NPB) (400 Å) of the following formula, which is a hole transporting material, was vacuum deposited on the hole injection layer to form a hole transport layer .

Subsequently, 9- (naphthalene-1-yl) -10- (naphthalen-2-yl) anthracene (BH1) of the following formula was vacuum deposited on the hole transport layer to a thickness of 300 Å as a light emitting layer host to form a light emitting layer.

4% by weight of Compound N4, N9-bis (dibenzofuran-4-yl) -N4 and N9-di-m-tolylpyrene-4,9-diamine (BD1) was used as a blue light emitting dopant, Respectively.

Alq ₃ (aluminum tris (8-hydroxyquinoline)) of the following formula was vacuum deposited on the light emitting layer to a thickness of 200 Å to form an electron injection and transport layer.

Lithium fluoride (LiF) and aluminum were deposited to a thickness of 12 Å and a thickness of 2000 Å on the electron injection and transport layer sequentially to form a cathode.

The deposition rate of the organic material was maintained at 0.4 to 0.7 Å / sec, the lithium fluoride at the cathode was maintained at a deposition rate of 0.3 Å / sec, and the deposition rate of aluminum was maintained at 2 Å / sec. ^-7 to 5 x 10 &lt; ^-8 &gt; torr.

< Comparative Example  2 and 3>

(BD2) or the following compound 4-bis (benzofuro) [2,3-c: 3 ', 2'-g] carbazole (BD2) was used instead of BD1 as a blue light emitting layer dopant material. (BD3) was used in place of the [2,3-c: 3 ', 2'-g] carbazol-4-yl) -N 2,3- Performance was measured.

< Example  1 to 18>

The device performance was measured in the same manner as in Comparative Example 1 except that the following compounds 1 to 18 were used in place of BD1 as a blue light emitting layer dopant material.

The organic electroluminescent devices manufactured using the compounds as the blue dopant materials as in Comparative Examples 1 to 3 and Examples 1 to 18 were tested at a current density of 20 mA / cm ² , .

Experimental Example Dopant material Voltage (V) Efficiency (Cd / A) Life T97%
(time) Comparative Example 1 BD1 5.29 6.75 130 Comparative Example 2 BD2 5.45 1.02 6 Comparative Example 3 BD3 5.42 1.21 2 Example 1 Compound 1 5.36 6.93 141 Example 2 Compound 2 5.20 7.12 157 Example 3 Compound 3 5.23 7.00 92 Example 4 Compound 4 5.31 7.05 138 Example 5 Compound 5 5.25 6.97 161 Example 6 Compound 6 5.16 6.89 165 Example 7 Compound 7 5.30 7.02 158 Example 8 Compound 8 5.44 6.89 149 Example 9 Compound 9 5.31 7.08 90 Example 10 Compound 10 5.32 7.03 102 Example 11 Compound 11 5.43 7.06 92 Example 12 Compound 12 5.20 7.13 97 Example 13 Compound 13 5.21 6.99 105 Example 14 Compound 14 5.27 6.97 111 Example 15 Compound 15 5.26 7.00 158 Example 16 Compound 16 5.31 7.10 143 Example 17 Compound 17 5.20 7.01 152 Example 18 Compound 18 5.17 7.13 160

It was found that the heterocyclic compounds according to Examples 1 to 18 of Table 1 exhibited excellent device characteristics when applied to an organic electroluminescent device.

In particular, it was found that the efficiency of the compound of Comparative Example 1 was higher than that of Comparative Example 1. In Comparative Examples 2 and 3, since the absorption / emission wavelength was too short, the efficiency of the host material and the energy transfer system were not effectively made, I could see something short.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

10, 11: Organic electroluminescent device
20: substrate
30: first electrode
40: light emitting layer
50: second electrode
60: Hole injection layer
70: hole transport layer
80: electron transport layer
90: electron injection layer

Claims (23)

A heterocyclic compound represented by the following formula (1):
[Chemical Formula 1]

In Formula 1,
Any one of X1 and X2 is a direct bond and the remainder is O or S,
Any one of X3 and X4 is a direct bond and the remaining is O or S,
L1 to L3 are the same or different and are each independently a direct bond; A phenylene group; Naphthylene group; Biphenylene group; A terphenylrenylene group; A fluorenylene group substituted or unsubstituted with a methyl group or a phenyl group; A divalent thiophene group; A furanylene group; A pyrrolene group substituted or unsubstituted with a methyl group or a phenyl group; Dibenzofuranyl group; A divalent dibenzothiophene group; Or a carbazolylene group substituted or unsubstituted with an ethyl group or a phenyl group,
a, b and c are each an integer of 1 or 2,
when a is 2, L1 is the same or different from each other,
when b is 2, L2 is the same or different from each other,
when c is 2, L &lt; 3 &gt; are the same or different from each other,
Ar5 is a phenyl group substituted with emitter-butyl, CF _3, or phenyl; Naphthyl group; A bisfluorene group; Phenanthrene; A dibenzofurane group; Pyrene; A pyridine group; A diphenylfluorene group; A dibenzothiophene group substituted or unsubstituted with a cyclohexyl group; A terphenyl group; Triphenylene group; A carbazolyl group substituted or unsubstituted with an ethyl group; An amine group substituted or unsubstituted with a phenyl group substituted or unsubstituted with a tert-butyl group; Benzimidazole substituted or unsubstituted with an ethyl group; Benzonaphthofuran group; Or a benzothiophene group,
Ar 1 to Ar 4 are the same or different and are a phenyl group substituted with a thiophene group, a nitrile group, a terbutyl group, an F, CF ₃ , a trimethylsilyl group, an isopropyl group, or a naphthyl group, each of which is independently substituted with a phenyl group; A biphenyl group substituted or unsubstituted with a methyl group, a nitrile group, or a trimethylsilyl group; F or a naphthyl group substituted or unsubstituted with a nitrile group; A dibenzofurane group substituted or unsubstituted with a tert-butyl group; A dibenzothiophene group substituted or unsubstituted with a butyl group or a cyclohexyl group; A fluorene group substituted or unsubstituted with a methyl group; Triazine; Fluoranthene group; Benzo [d] [1,3] oxathiol (benzo [d] [1,3] oxathiole) group; A spirobifluorene group substituted or unsubstituted with a trimethylsilyl group; An isoquinoline group; Pyridazine group; A thiophene group substituted or unsubstituted with a phenyl group; A carbazolyl group substituted or unsubstituted with an ethyl group; Or a benzofuran group, or Ar1 and Ar2; Ar1 and L1; Ar2 and L1; Ar3 and Ar4; Ar3 and L2; Or Ar4 and L2 are bonded to each other to form a 3- to 6-membered aliphatic or aromatic hydrocarbon ring or a 3- to 6-membered heterocyclic ring, or Ar1 and Ar2, and Ar1 and L1; Ar1 and Ar2, and Ar2 and L1; Ar1 and L1, and Ar2 and L1; Ar3 and Ar4, and Ar3 and L2; Ar3 and Ar4, and Ar4 and L2; Or Ar3 and L2, and Ar4 and L2 are bonded to each other to form a 3- to 6-membered aliphatic or aromatic hydrocarbon ring or a 3- to 6-membered heterocyclic ring, or Ar1, Ar2 and L1; Or Ar 3, Ar 4 and L 2 are bonded to each other to form a 3- to 6-membered aliphatic or aromatic hydrocarbon ring or a 3- to 6-membered heterocyclic ring,
R1 to R4 are hydrogen,
d and e are 4. The heterocyclic compound according to claim 1, wherein the formula 1 is represented by the following formula 2:
(2)

In the above formula (2), the definition of substituents is as defined in formula (1). The heterocyclic compound according to claim 1, wherein the formula 1 is represented by the following formula 3:
(3)

In the above formula (3), the definition of the substituents is as defined in formula (1). The heterocyclic compound according to claim 1, wherein the formula 1 is represented by any one of the following formulas 1-1 to 1-3:
[Formula 1-1]

[Formula 1-2]

[Formula 1-3]

In Formulas 1-1 through 1-3,
X5 and X6 are the same as or different from each other, and each independently O or S. The definition of the remaining substituents is the same as defined in formula (1). delete delete delete delete delete delete delete delete delete delete delete delete The heterocyclic compound according to claim 1, wherein the formula 1 is represented by any one of the following formulas:

A first electrode; A second electrode facing the first electrode; And at least one organic compound layer provided between the first electrode and the second electrode, wherein at least one of the organic compound layers is a heterocyclic compound according to any one of claims 1 to 4 and 17, And an organic electroluminescent device. 19. The organic electroluminescent device according to claim 18, wherein the organic layer includes a light emitting layer, and the light emitting layer comprises the heterocyclic compound. The organic electroluminescent device according to claim 19, wherein the light emitting layer further comprises a compound represented by the following formula (4):
[Chemical Formula 4]

In Formula 4,
R11 is hydrogen; heavy hydrogen; A halogen group; Cyano; A nitro group; A hydroxy group; An aryloxy group; An alkyloxy group; Arylthioxy group; An alkylsulfoxy group; Arylsulfoxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted alkylamine group; A substituted or unsubstituted aralkylamine group; A substituted or unsubstituted heteroarylamine group; A substituted or unsubstituted arylamine group; A substituted or unsubstituted arylheteroarylamine group; A substituted or unsubstituted arylphosphine group; A substituted or unsubstituted aralkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, x is an integer of 0 to 6, and when x is 2 or more, R11 is the same or different from each other,
L11 to L14 are the same or different and are each independently a direct bond; And h, i, j and k are each an integer of 1 or 2, and when h is 2, L11 is the same or different, and when i is 2, L12 is the same or different from each other And when j is 2, L13 are the same or different, and when k is 2, L14 are the same or different from each other,
Ar11 to Ar14 are the same or different and each independently represents a substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group. The organic electroluminescent device according to claim 20, wherein the compound represented by Formula 4 is selected from the following compounds:

The organic electroluminescent device according to claim 19, wherein the light emitting layer further comprises a compound represented by the following formula (5):
[Chemical Formula 5]

In Formula 5,
R12 is hydrogen; heavy hydrogen; A halogen group; Cyano; A nitro group; A hydroxy group; An aryloxy group; An alkyloxy group; Arylthioxy group; An alkylsulfoxy group; Arylsulfoxy group; A substituted or unsubstituted alkyl group; A substituted or unsubstituted cycloalkyl group; A substituted or unsubstituted alkoxy group; A substituted or unsubstituted aryloxy group; A substituted or unsubstituted alkenyl group; A substituted or unsubstituted silyl group; A substituted or unsubstituted alkylamine group; A substituted or unsubstituted aralkylamine group; A substituted or unsubstituted heteroarylamine group; A substituted or unsubstituted arylamine group; A substituted or unsubstituted arylheteroarylamine group; A substituted or unsubstituted arylphosphine group; A substituted or unsubstituted aralkyl group; A substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group, y is an integer of 0 to 7, R12 in which y is 2 or more are the same or different,
L21 to L23 are the same or different, and are each independently a direct bond; M, n, and o are each an integer of 1 or 2, and when m is 2, L21 is the same or different, and when n is 2, L22 is the same or different from each other, when o is 2, L23 are the same or different from each other,
Ar21 to Ar23 are the same or different and each independently represents a substituted or unsubstituted aryl group; Or a substituted or unsubstituted heteroaryl group. The organic electroluminescent device according to claim 22, wherein the compound represented by Formula 5 is selected from the following compounds:

Images