KR20150065157A - An electroluminescent compound and an electroluminescent device comprising the same - Google Patents

Abstract

The present invention relates to an organic light emitting compound represented by [chemical formula 1-1] to [chemical formula 1-2]. An organic electroluminescent device using the same has excellent light emitting efficiency and can be driven at low voltage, thereby having improved power efficiency and long life property.

Description

TECHNICAL FIELD The present invention relates to an organic electroluminescent compound and an electroluminescent device comprising the same,

The present invention relates to an organic light emitting compound and an organic electroluminescent device including the same.

In recent years, organic light emitting devices capable of being driven by a low voltage in a self-emission type are superior in viewing angle and contrast ratio compared to a liquid crystal display, which is a mainstream of a flat panel display device, require no backlight and are lightweight and thin, And has been attracting attention as a next generation display device.

An organic electroluminescent device is a device that injects electric charge into an organic light emitting layer formed between an electron injection electrode (cathode) and a hole injection electrode (anode) to form a pair of electrons and holes, The device can be formed on a substrate and can be driven at a voltage as low as 10 V or less as compared with a plasma display panel or an inorganic electroluminescence display, has a relatively low power consumption, and is excellent in color. In addition, organic electroluminescent devices are capable of displaying three colors of green, blue, and red, and thus are attracting much attention as next-generation rich color display devices.

The most important factor determining the luminous efficiency in an organic electroluminescent device is a light emitting material. However, the development of a phosphorescent material on a light-emitting mechanism is one of the ways that the luminous efficiency can be improved more theoretically. Accordingly, a variety of phosphorescent materials have been developed to date, Particularly, CBP (4,4'-N, N'-dicarbazolbiphenyl) is the most widely known phosphorescent host material, and materials in which various substituents are introduced into carbazole are disclosed in Japanese Patent Laid-Open Publication No. 2008-214244 2003-133075) or an organic electroluminescent device using a BALq derivative as a host.

However, an organic electroluminescent device using a phosphorescent material has a significantly higher current efficiency than a device using a fluorescent material. However, when a material such as BAlq or CBP is used as a host of a phosphorescent material, There is no significant advantage in terms of power efficiency due to a high voltage and satisfactory level of life of the device can not be achieved, and development of a more stable and high-performance host material is required.

Accordingly, an object of the present invention is to provide an organic luminescent compound having a luminescent efficiency higher than that of a conventional material, and at the same time having low voltage driving, improved power efficiency and long life time characteristics.

The present invention also provides an organic electroluminescent device employing the organic electroluminescent compound as a light emitting material for low voltage driving, excellent luminous efficiency, and long life.

In order to solve the above problems, the present invention provides organic luminescent compounds represented by the following formulas (1-1) to (1-2).

[Formula 1-1] [Formula 1-2]

Each substituent in the above formulas (1-1) to (1-2) will be described later.

Also, the present invention provides an organic electroluminescent device comprising a first electrode, a second electrode, and at least one organic layer interposed between the first electrode and the second electrode, And at least one organic luminescent compound represented by Formula 1-2.

The organic layer may include at least one selected from the group consisting of a hole injecting layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injecting layer. The compound is employed in the light emitting layer to be used as a host, and may further include one or more dopant compounds.

In addition, the organic electroluminescent device according to the present invention may be an organic electroluminescent device which emits white light by further including an organic light emitting layer which emits blue, red or green light.

The organic electroluminescent device employing the organic electroluminescent compound according to the present invention has a lower driving voltage than the conventional electroluminescent host material and has excellent power efficiency and luminous efficiency and long life.

1 is a conceptual diagram illustrating an organic electroluminescent device having a multilayer structure according to an embodiment of the present invention.

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

One aspect of the present invention relates to an organic luminescent compound represented by the following formulas (1-1) to (1-2).

[Formula 1-1] [Formula 1-2]

In the above formulas 1-1 to 1-2,

A ₁ to A ₁₆ are each independently CX or N, and two adjacent A of A ₁ to A ₁₆ are bonded to L to form a condensed ring (* denotes a binding site).

Y, Z, W and Q are each independently CR ₁ R ₂ , NR ₃ , O, S, SiR ₄ R ₅ , GeR ₆ R ₇ , BR ₈ , PR ₉ , C═O, Se, At least one of Y, Z, W and Q is NR ₃ (provided that n is an integer of 0 to 3).

The R ₁ To R < ₉ > are the same or different and each independently represents hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, Lt; RTI ID = 0.0 > 30 < / RTI >

Each X is independently selected from the group consisting of hydrogen, deuterium, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C40 aryl group, a substituted or unsubstituted C2-30 heteroaryl group, a halogen A substituted or unsubstituted alkenyl group having 2 to 60 carbon atoms, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, , A substituted or unsubstituted alkynyl group having 2 to 60 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 60 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 60 carbon atoms, a substituted or unsubstituted 5 to 60 aryloxy, aryl come Im a substituted or unsubstituted carbon atoms of 5 to 60, is selected from -SiR ₁₀ R ₁₁ R ₁₂ and -NR ₁₃ R _14.

Wherein R ₁₀ to R ₁₄ are independently selected from the group consisting of hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, A halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, Substituted or unsubstituted C2-C60 alkynyl, substituted or unsubstituted C1-C60 alkoxy, substituted or unsubstituted C3-C60 cycloalkyl, substituted or unsubstituted C5- An aryloxy group of 5 to 60 carbon atoms, and a substituted or unsubstituted arylthio group having 5 to 60 carbon atoms.

According to a preferred embodiment of the present invention, when at least one of Y, Z, W and Q is NR ₃ , R ₃ may be any one selected from the following Structural Formulas 1 to 10 .

[Structural formula 1] [Structural formula 2] [Structural Formula 3] [Structural Formula 4]

[Structural Formula 5] [Structural Formula 6] [Structural Formula 7]

[Structural formula 8] [Structural Formula 9] [Structural Formula 10]

In the above Structural Formulas 1 to 10,

T ₁ to T ₁₂ are the same or the different and are each independently of one _{another, C (R 41), C} (R 42) (R 43), N, N (R 44), O , and is selected from S, wherein R ₄₁ To R < ₄₄ > are the same or different and each independently represents hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, And a heteroaryl group having 2 to 30 carbon atoms having a substituted or unsubstituted hetero atom, O, N, S or P,

More preferably, R < ₃ > may be any one selected from the following [formula 11].

[Structural Formula 11]

In the above structural formula 11,

X is hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 5 to 30 carbon atoms, an unsubstituted or substituted alkenyl group having 2 to 30 carbon atoms, A substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C5-C30 cycloalkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, A substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms, a substituted or unsubstituted arylthioxy group having 5 to 30 carbon atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms An amino group, a substituted or unsubstituted aryl group having 5 or more carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms having O, N, S, or P as a hetero atom, a cyano group, Is selected from a, m is an integer from 1 to 11, is a plurality of X are the same or different when m is 2 or more.

In the "substituted or unsubstituted" in the present invention, 'substituted' has the R ₁ To R _14, X and R ₄₁ to R _44, etc. are each independently a heavy hydrogen, a cyano group, a halogen group, a hydroxyl group, a nitro group, a C 1 -C 20 alkyl group, having 1 to 20 carbon atoms an alkenyl group, having 1 to 20 carbon atoms of the substituent of the A halogenated alkyl group having 1 to 20 carbon atoms, an aryl group having 5 to 24 carbon atoms, a heteroaryl group having 2 to 24 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryloxy group having 5 to 24 carbon atoms, an alkoxy group having 1 to 20 carbon atoms An alkylsilyl group of 5 to 24 carbon atoms, an arylsilyl group of 5 to 24 carbon atoms, an alkylamine group of 1 to 20 carbon atoms, an arylamine group of 6 to 24 carbon atoms, and the like.

In addition, the R ₁ To R < ₁₄ >, X and their substituents may be linked to each other or adjacent substituents to form an alicyclic ring, a monocyclic or polycyclic aromatic ring or a heterocyclic ring.

The carbon number range of the alkyl group or aryl group in the 'substituted or unsubstituted C1-C30 alkyl group', the 'substituted or unsubstituted C6 to C40 aryl group', etc., Quot; means the total number of carbon atoms constituting the alkyl moiety or the aryl moiety when it is regarded as unsubstituted. For example, a phenyl group substituted with a butyl group at the para position means an aryl group having 6 carbon atoms substituted with a butyl group having 4 carbon atoms.

In addition, the aryl group contained in the organic luminescent compound according to the present invention is an organic radical derived from an aromatic hydrocarbon by the removal of one hydrogen, a single or fused ring system containing 5 to 7 atoms, preferably 5 or 6 atoms And when a substituent is present in the aryl group, it may be fused with an adjacent substituent to further form a ring.

On the other hand, the aryl group which is a substituent used in the present invention is an organic radical derived from an aromatic hydrocarbon by the removal of one hydrogen, and includes a single or fused ring system containing 5 to 7 atoms, preferably 5 or 6 atoms, When a substituent is present in the aryl group, the adjacent substituent may be fused with each other to form a ring.

Specific examples of the aryl group include a phenyl group, 2-methylphenyl group, 3-methylphenyl group, 4-methylphenyl group, 4-ethylphenyl group, o-biphenyl group, m-biphenyl group, Naphthyl group, 1-methylnaphthyl group, 2-methylnaphthyl group, anthryl group, phenanthryl group, naphthyl group, An aromatic group such as a fluorenyl group, a pyrenyl group, an indenyl group, a fluorenyl group, a tetrahydronaphthyl group, a pyrenyl group, a perylene group, a crycenyl group, a naphthacenyl group and a fluoranthenyl group.

At least one hydrogen atom of the aryl group may be replaced by a substituent selected from the group consisting of a deuterium atom, a halogen atom, a hydroxyl group, a nitro group, a cyano group, a silyl group, an amino group (-NH ₂ , -NH (R) 'And R''each independently represent an alkyl group having 1 to 10 carbon atoms, which is referred to as an "alkylamino group" in this case), an amidino group, a hydrazine group, a hydrazone group, a carboxyl group, a sulfonic acid group, a phosphoric acid group, A halogenated alkyl group having 1 to 24 carbon atoms, an alkenyl group having 1 to 24 carbon atoms, an alkynyl group having 1 to 24 carbon atoms, a heteroalkyl group having 1 to 24 carbon atoms, an aryl group having 6 to 24 carbon atoms, an arylalkyl group having 6 to 24 carbon atoms, A heteroaryl group having 2 to 24 carbon atoms, a heteroarylalkyl group having 2 to 24 carbon atoms, and the like.

The organic luminescent compounds represented by formulas (1-1) to (1-2) according to the present invention are not limited in the range of the following specific compounds, but are more specifically represented by the following formulas (2) to May be selected from the compounds shown.

(2) (3) [Chemical Formula 4] [Chemical Formula 5]

[Chemical Formula 6] (7) [Chemical Formula 8] [Chemical Formula 9]

[Chemical formula 10] (11) [Chemical Formula 12] [Chemical Formula 13]

[Chemical Formula 14] [Chemical Formula 15] [Chemical Formula 16] [Chemical Formula 17]

[Chemical Formula 18] [Chemical Formula 19] [Chemical Formula 20] [Chemical Formula 21]

[Chemical Formula 22] (23) ≪ EMI ID = (25)

(26) (27) (28) [Chemical Formula 29]

(30) (31) (32) (33)

(34) (35) (36) (37)

(38) [Chemical Formula 39] (40) (41)

(42) (43) (44) [Chemical Formula 45]

(46) (47) (48) (49)

(50) (51) (52) (53)

(54) (55) (56) (57)

(58) [Chemical Formula 59] (60) (61)

(62) (63) ≪ EMI ID = (65)

(66) (67) (68) (69)

(70) (71) (72) (73)

≪ EMI ID = (75) [Formula 76] [Formula 77]

(78) (79) (80) [Formula 81]

(82) (83) (84) (85)

≪ EMI ID = [Chemical Formula 87] [Formula 88] (89)

(90) [Formula 91] ≪ EMI ID = ≪ EMI ID =

(94) ≪ EMI ID = ≪ EMI ID = [Formula 97]

(98) [Formula 99] (100) (101)

≪ EMI ID = ≪ EMI ID = ≪ EMI ID = ≪ EMI ID =

≪ EMI ID = ≪ EMI ID = (108) (109)

(110) (111) (112) (113)

(114) (115) ≪ EMI ID = (117)

(118) (119) (120) (121)

(122) (123) (124) (125)

(126) (127) (128) ≪ EMI ID =

(130) [Formula 131] (132) (133)

(134) (135) ≪ EMI ID = (137)

≪ EMI ID = [Chemical Formula 139] ≪ EMI ID = (141)

(142) (143) (144) (145)

(146) (147) (148) [Chemical Formula 149]

(150) (151) (152) [Formula 153]

(154) (155) (156) (157)

(158) (159) [Formula 160] [Formula 161]

(162) [163] ≪ EMI ID = (165)

≪ EMI ID = ≪ EMI ID = ≪ EMI ID = [169]

(170) [171] (172) [173]

≪ EMI ID = (175) [176] [177]

[178] [179] (180) [181]

[Formula 182] [183] [184] [185]

[186] [187] [188] [189]

(190) [191] (192) [193]

[194] [195] [196] [197]

[198] [199] (200) [201]

(202) (203) ≪ EMI ID = (205)

(206) (207) (208) ≪ EMI ID =

(210) (211) (212) (213)

(214) (215) (216) [217]

[218] [219] (220) [Formula 221]

(222) [223] [224] [225]

[226] [227] [228] [229]

[230] [231] (232) [233]

[234] [235] [236] [237]

[238] [239] (240) [241]

[242] [243] [244] [245]

[246] [247] [248] [249]

(250) [251] ≪ EMI ID = [253]

≪ EMI ID = [255] [Formula 256] [257]

[Formula 252] [Chemical Formula 260] [Chemical Formula 261]

According to another aspect of the present invention, there is provided an organic electroluminescent device comprising a first electrode, a second electrode, and at least one organic layer interposed between the first electrode and the second electrode, 1] to [Formula 1-2]. The organic electroluminescent compounds according to the present invention may be used alone or in combination of two or more.

The organic layer containing the organic luminescent compound of the present invention may include at least one of a hole injecting layer, a hole transporting layer, a functional layer having both a hole injecting function and a hole transporting function, a light emitting layer, an electron transporting layer, and an electron injecting layer .

At this time, the organic layer interposed between the first electrode and the second electrode may include a light emitting layer, and the light emitting layer may be composed of a host and a dopant, and the organic light emitting compound of the present invention may be used as a host.

In the present invention, a dopant material may be used for the light emitting layer in addition to the host. When the light emitting layer includes a host and a dopant, the dopant content may be selected generally in the range of about 0.01 to about 20 parts by weight based on about 100 parts by weight of the host.

Hereinafter, an embodiment of the organic electroluminescent device according to the present invention will be described in more detail with reference to FIG.

The organic electroluminescent device according to the present invention includes an anode 20, a hole transporting layer 40, an organic light emitting layer 50, an electron transporting layer 60, and a cathode (80), and if necessary, may further include a hole injection layer (30) and an electron injection layer (70). In addition, one or two intermediate layers may be further formed, Or an electron blocking layer may be further formed, and an organic layer having various functions may be further included depending on the characteristics of the device.

The organic electroluminescent device of the present invention and its manufacturing method will be described with reference to FIG.

First, an anode electrode material is coated on the substrate 10 to form an anode 20. Here, as the substrate 10, a substrate used in a typical organic electroluminescent device is used, and an organic substrate or a transparent plastic substrate having excellent transparency, surface smoothness, ease of handling, and waterproofness is preferable. As the material for the anode electrode, indium tin oxide (ITO), indium zinc oxide (IZO), tin oxide (SnO ₂ ), zinc oxide (ZnO) and the like which are transparent and excellent in conductivity are used.

A hole injecting layer 30 is formed on the anode 20 by vacuum thermal deposition or spin coating. Subsequently, a hole transport layer 40 is formed by vacuum thermal deposition or spin coating on the hole transport layer 30 above the hole injection layer 30.

The material for the hole injection layer is not particularly limited as long as it is commonly used in the art. Specific examples thereof include 2-TNATA [4,4 ', 4 "-tris (2-naphthylphenyl-phenylamino) -triphenylamine] , NPD [N, N'-diphenyl-N, N'-bis (3-methylphenyl) -1,1'- biphenyl-4,4'-diamine], DNTPD [N, N'-diphenyl-N, N'-bis- [4- ] Can be used.

The material for the hole transport layer is not particularly limited as long as it is commonly used in the art and includes, for example, N, N'-bis (3-methylphenyl) -N, N'- -Biphenyl] -4,4'-diamine (TPD) or N, N'-di (naphthalene-1-yl) -N, N'-diphenylbenzidine (? -NPD).

A hole blocking layer (not shown) is selectively formed on the organic light emitting layer 50 by a vacuum deposition method or a spin coating method to form a thin film on the organic light emitting layer 50 can do. In the case where holes are injected into the cathode through the organic light-emitting layer, the lifetime and the efficiency of the device are reduced, and thus the hole blocking layer plays a role of preventing such a problem by using a material having a very low HOMO (Highest Occupied Molecular Orbital) level . In this case, the hole blocking material to be used is not particularly limited, but it is required to have an ionization potential higher than that of the light emitting compound while having electron transporting ability. Typically, BAlq, BCP, TPBI and the like can be used.

Wherein a material used for the hole blocking layer, BAlq, BCP, Bphen, TPBI, NTAZ, BeBq _2, OXD-7, Liq and [Formula 301] to, but any one may be used selected from [Formula 307], limited thereto It is not.

BAlq BCP Bphen

TPBI NTAZ BeBq ₂

OXD-7 Liq

(301) (302) ≪ EMI ID =

(304) ≪ EMI ID = (306)

≪ EMI ID =

After the electron transport layer 60 is deposited on the hole blocking layer by a vacuum deposition method or a spin coating method, an electron injection layer 70 is formed, and a cathode forming metal is deposited on the electron injection layer 70 in a vacuum heat- And the cathode 80 is formed by vapor deposition to complete the organic EL device. Here, as the metal for forming the cathode, lithium, magnesium, aluminum, aluminum-lithium, calcium, magnesium-magnesium, Mg-Ag), and a transmissive cathode using ITO or IZO can be used to obtain a top light-emitting device.

As the electron transporting layer material, a known electron transporting material can be used as a material that stably transports electrons injected from an electron injection electrode (cathode). Examples of known electron transporting materials include quinoline derivatives, especially tris (8-quinolinolate) aluminum (Alq3), TAZ, Balq, beryllium bis (benzoquinolin-10- materials such as olate: Bebq2), ADN, [Formula 401], [Formula 402], and oxadiazole derivatives PBD, BMD, BND and the like may be used.

TAZ BAlq

[Compound 401] [Compound 402] BCP

Further, the electron transporting layer used in the present invention can be used as the organometallic compound represented by the following formula (C) alone or in combination with the electron transporting layer material.

≪ RTI ID = 0.0 &

In the above formula (C)

Y is a moiety selected from C, N, O and S, which is directly bonded to M to form a single bond, and any moiety selected from C, N, O and S is a moiety coordinating to M And is a ligand chelated by coordination bond with the single bond. M is an alkali metal, an alkaline earth metal, an aluminum (Al), or a boron (B) atom.

OA is a monovalent ligand capable of single bond or coordination bond with M, O is oxygen, A is a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 5 to 50 carbon atoms, Substituted or unsubstituted C2-C30 alkenyl, substituted or unsubstituted C2-C20 alkynyl, substituted or unsubstituted C3-C30 cycloalkyl, substituted or unsubstituted C5-C30 cycloalkyl, An alkenyl group, and a substituted or unsubstituted heteroaryl group having 2 to 50 carbon atoms having a hetero atom O, N, or S.

When m is 1 or n = 0 when M is one metal selected from alkali metals and m is 1 or n = 1 when M is a metal selected from alkaline earth metals, or m = 2 and n = 0, and when M is boron or aluminum, m is any one of 1 to 3 and n is any of 0 to 2, and m + n = 3.

The 'substituted' in the 'substituted or unsubstituted' may be a substituent selected from the group consisting of deuterium, cyano, halogen, hydroxy, nitro, alkyl, alkoxy, alkylamino, arylamino, heteroarylamino, alkylsilyl, An aryl group, an aryl group, a heteroaryl group, germanium, phosphorus, and boron.

The Y may be the same or different and independently selected from the following Structural Formulas C1 to C39, but is not limited thereto.

[Structural formula C1] [Structural formula C2] [Structural formula C3]

[Structural formula C4] [Structural formula C5] [Structural formula C6]

[Structural formula C7] [Structural formula C8] [Structural formula C9] [Structural formula C10]

[Structural formula C11] [Structural formula C12] [Structural formula C13]

[Structural formula C14] [Structural formula C15] [Structural formula C16]

[Structural formula C17] [Structural formula C18] [Structural formula C19] [Structural formula C20]

[Structural formula C21] [Structural formula C22] [Structural formula C23]

[Structural formula C24] [Structural formula C25] [Structural formula C26]

[Structural formula C27] [Structural formula C28] [Structural formula C29] [Structural formula C30]

[Structural formula C31] [Structural formula C32] [Structural formula C33]

[Structural formula C34] [Structural formula C35] [Structural formula C36]

[Structural formula C37] [Structural formula C38] [Structural formula C39]

In the above Structural Formula C1 to Structural Formula C39,

R is the same or different and is each independently selected from the group consisting of hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C1-30 alkyl, substituted or unsubstituted C6-30 aryl, A substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, A substituted or unsubstituted alkylsilyl group having 1 to 30 carbon atoms, a substituted or unsubstituted arylamino group having 6 to 30 carbon atoms, and a substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms And may be connected to an adjacent substituent by alkylene or alkenylene to form a spiro ring or a fused ring.

L represents a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted group having 5 to 30 carbon atoms A substituted or unsubstituted cycloalkyl group having 5 to 30 carbon atoms, L is an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 40 carbon atoms, an aryl group having 3 to 20 carbon atoms, A heteroaryl group, a cyano group, a halogen group, deuterium, and hydrogen, and may be connected to an adjacent substituent by an alkylene or an alkenylene to form a spiro ring or a fused ring.

In the organic electroluminescent device according to the present invention, the organic layer may include a light emitting layer, and the light emitting layer may include at least one phosphorescent dopant in addition to at least one organic light emitting compound represented by any one of formulas (1-1) The luminescent dopant to be applied to the organic electroluminescent device of the present invention is not particularly limited, but is preferably selected from compounds represented by the following formulas (A-1) to (J-1) It may be one or more compounds.

[General Formula A-1]

ML ₁ L ₂ L ₃

Wherein M is selected from the group consisting of metals of Groups 7, 8, 9, 10, 11, 13, 14, 15 and 16, preferably Ir, Pt, Pd, Rh, Re , Os, Tl, Pb, Bi, In, Sn, Sb, Te, Au and Ag. L ₁ , L ₂ and L ₃ are the same or different from each other as ligands, and each independently selected from the following structural formula [D], but are not limited thereto. In the following [Structural Formula D], * represents a site binding to the metal ion M.

[Structural formula D]

In the above structural formula D,

A substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1- A substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C2 to C30 alkenyl group, a substituted or unsubstituted C2 to C30 heteroaryl group, A substituted or unsubstituted alkylamino group having 1 to 30 carbon atoms, an unsubstituted alkylamino group having 1 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 1 to 30 carbon atoms, a substituted or unsubstituted arylamino group having 6 to 30 carbon atoms and a substituted or unsubstituted arylsilyl And the like.

Each R is independently selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 40 carbon atoms, a heteroaryl group having 3 to 20 carbon atoms, a cyano group, a halogen group, deuterium and hydrogen And may be further substituted with one or more substituents.

Further, the R may be connected to each adjacent substituent by alkylene or alkenylene to form an alicyclic ring and a monocyclic or polycyclic aromatic ring.

The L may be connected to an adjacent substituent by alkylene or alkenylene to form a spiro ring or a fused ring.

As a specific example, the dopant represented by the above-mentioned [formula A-1] may be any one selected from the following compounds, but is not limited thereto.

[Formula B-1]

In the above general formula B-1,

M ^A1 represents the same metal ion as defined in [formula A-1], and Y ^A11 , Y ^A14 , Y ^A15 and Y ^A18 Y ^A13 , Y ^A16 and Y ^A17 each independently represent a substituted or unsubstituted carbon atom, a substituted or unsubstituted nitrogen atom, an oxygen atom or a sulfur atom, and Y ^A12 , Y ^A13 , Y ^A16 and Y ^A17 each independently represent a substituted or unsubstituted carbon atom, L ^A11 , L ^A12 , L ^A13 and L ^A14 each represent a linking group as defined above, and Q ^A11 and Q ^A12 represent a partial structure containing an atom bonding to M ^A1 .

Exemplary structures of the compound represented by the above-mentioned general formula B-1 are shown below, but the present invention is not limited thereto.

[Formula C-1]

In the above general formula (C-1)

M ^B1 represents the same metal ion as defined from the following formula ^{A-1], Y B11,} Y B14, Y B15 and Y ^B18 each independently represents a carbon atom or a nitrogen ^{atom, Y B12, Y B13, Y} B16 And Y ^B17 each independently represent a substituted or unsubstituted carbon atom, a substituted or unsubstituted nitrogen atom, an oxygen atom or a sulfur atom, L ^B11 , L ^B12 , L ^B13 and L ^B14 represent a linking group, Q ^B11 and Q ^B12 represent ^Represents a partial structure containing an atom bonding to M ^B1 .

Exemplary structures of the compound represented by the above-mentioned general formula C-1 are shown below, but the present invention is not limited thereto.

[Formula D-1]

In the above general formula (D-1)

M ^C1 represents a metal ion as defined in [formula A-1], R ^C11 and R ^C12 each independently represent a hydrogen atom, a substituent which is connected to each other to form a 5-membered ring, Each of R ^C13 and R ^C14 independently represents a hydrogen atom, a substituent which is connected to each other to form a 5-membered ring, or a substituent which does not have any one to be connected to each other, and G ^C11 and G ^C12 each independently represent a nitrogen atom, a substituent Or an unsubstituted carbon atom, L ^C11 and L ^C12 represent a linking group, and Q ^C11 and Q ^C12 represent a partial structure containing an atom bonding to M ^C1 .

Exemplary structures of the compound represented by the above-mentioned general formula (D-1) are shown below, but the present invention is not limited thereto.

[Formula E-1]

In the above general formula E-1,

M ^D1 represents the same metal ion as defined from the following formula A-1], G ^D11, G ^D12 each independently represent a nitrogen atom, a substituted or unsubstituted carbon atom, J ^D11, J ^D12, J ^D13 and J ^D14 each independently represents an atomic group necessary for forming a five-membered ring, and L ^D11 and L ^D12 represent a linking group.

Exemplary structures of the compound represented by the above-mentioned formula (E-1) are as follows, but are not limited thereto.

[Formula F-1]

In the above general formula F-1,

M ^E1 represents the same metal ion as defined in [Formula A-1], J ^E11 and J ^E12 each independently represent an atom group necessary for forming a 5-membered ring, and G ^E11 , G ^E12 , G ^E13 and G ^E14 each independently represents a nitrogen atom, a substituted or unsubstituted carbon atom, and Y ^E11 , Y ^E12 , Y ^E13 and Y ^E14 each independently represent a nitrogen atom, a substituted or unsubstituted carbon atom.

Exemplary structures of the compound represented by the above-mentioned general formula F-1 are shown below, but are not limited thereto.

[Formula G-1]

In the above general formula G-1,

M ^F1 represents the same metal ion as defined in [formula A-1].

L ^F11 , L ^F12 and L ^F13 represent a linking group, R ^F11 , R ^F12 , R ^F13 and R ^F14 represent substituents, R ^F11 and R ^F12 , R ^F12 And R ^F13 , R ^F13 and R ^F14 may be connected to form a ring, wherein the ring formed by R ^F1 and R ^F12 , R ^F13 and R ^F14 is a 5-membered ring. And Q ^F11 and Q ^F12 represent a partial structure containing an atom bonding to M ^F1 .

Exemplary structures of the compound represented by the above-mentioned general formula G-1 are shown below, but the present invention is not limited thereto.

[Formula H-1] [Formula H-2] [Formula H-3]

In the above formulas H-1 to H-3,

R ¹¹ and R ¹² are substituents of alkyl, aryl or heteroaryl; And q11 and q12 may be an integer of 0 to 4, preferably 0 to 2, and may form a fused ring with substituents adjacent to each other.

When q11 and q12 are 2 to 4, a plurality of R11 and R12 may be the same or different.

L ¹ is a ligand which binds to platinum and is preferably a ligand capable of forming an ortho metal platinum complex, a nitrogen-containing heterocyclic ligand, a diketone ligand, or a halogen ligand, more preferably an ortho metal ) Ligand, a bipyridyl ligand or a phenanthroline ligand, which form a platinum complex.

n ¹ is an integer of 0 to 3, preferably 0, m ¹ is 1 or 2, and preferably 2.

It is preferable that n ¹ and m ¹ denote the metal complex represented by the general formula H-1 as a neutral complex.

In the above-mentioned general formula H-2,

R ²¹ , R ²² , n ² , m ² , q ²² and L ² are respectively the same as R ¹¹ , R ¹² , n ¹ , m ¹ , q ¹² and L ¹ , q ²¹ is an integer of 0 to 2 , 0 is preferable.

In the above-mentioned general formula H-3,

R ³¹ , n ³ , m ³ and L ³ are the same as R ¹¹ , n ¹ , m ¹ and L ¹ , q ³¹ is an integer of 0 to 8, preferably 0 to 2, desirable.

Examples of the specific compounds of the above-mentioned general formulas H-1 to H-3 are shown below, but the present invention is not limited thereto.

[Formula I-1]

In the above general formula I-1,

Ring A, ring B, ring C and ring D represents a nitrogen-containing heterocyclic ring which may have a substituent, and the remaining two rings may be substituted with an aryl ring or a hetero ring which may have a substituent And may form a condensed ring with ring A and ring B, ring A and ring C and / or ring B and ring D, respectively. X ¹ , X ² , X ³ and X ⁴ represent a nitrogen atom in which two of them coordinate to a platinum atom, and the remaining two represent a carbon atom or a nitrogen atom. Q ¹ , Q ² and Q ³ each independently represent a divalent atom (or a bond), but Q ¹ , Q ² and Q ³ do not simultaneously represent a bond. ^{Two of} Z ¹ , Z ² , Z ³ and Z ⁴ represent coordinate bond, and the remaining two represent a covalent bond, an oxygen atom or a sulfur atom.

Examples of the specific compounds of the above-mentioned general formula I-1 include, but are not limited to, the following.

[Formula J-1]

In the above general formula J-1,

M represents the same metal ion as defined in [formula A-1], Ar1 represents a substituted or unsubstituted cyclic structure, and two azomethine bonds (-C = N-) , The nitrogen atom (N) binds to the M, respectively, and forms a three-coordinate ligand which is bonded to the M at the 3-position as a whole.

Further, in Ar 1, C represents a carbon atom constituting a ring structure represented by Ar 1. R 1 and R 2 may be the same or different and each represents a substituted or unsubstituted alkyl group or aryl group, and L represents a one-dimensional ligand.

In the above general formula J-1, it is preferable that M is Pt. The above-mentioned Ar1 is preferably selected from a 5-membered ring, a 6-membered ring and condensed ring group thereof.

Examples of the specific compounds of the above-mentioned general formula J-1 include, but are not limited to, the following.

In addition, the light emitting layer may further include various dopants and various hosts in addition to the dopant and the host.

At least one layer selected from the hole injecting layer, the hole transporting layer, the electron blocking layer, the light emitting layer, the hole blocking layer, the electron transporting layer and the electron injecting layer may be formed by a single molecular deposition method or a solution process, Means a method of forming a thin film by evaporating a material used as a material for forming each of the layers by heating or the like under a vacuum or a low pressure state and the solution process is used as a material for forming each of the layers Means a method of forming a thin film by a method such as ink jet printing, roll-to-roll coating, screen printing, spray coating, dip coating, spin coating and the like.

Further, the organic electroluminescent device according to the present invention can be used in a device selected from a flat panel display device, a flexible display device, a monochromatic or white flat panel illumination device, and a single color or white flexible illumination device.

Hereinafter, the present invention will be described in more detail with reference to preferred embodiments. It will be apparent, however, to those skilled in the art that these embodiments are for further explanation of the present invention and that the scope of the present invention is not limited thereby.

Synthesis Example 1 Synthesis of Compound Represented by Formula 2

(1) Synthesis of Compound Represented by Formula (1-a)

A compound represented by the formula (1-a) was synthesized by the following reaction scheme (1).

[Reaction Scheme 1]

[Chemical Formula 1-a]

To the dried reactor were added 50 g (235 mmol) of 5-bromobenzothiophene, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, 2.9 g (5 mmol) of bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiary butoxide and 500 mL of toluene were added and refluxed for 12 hours. After the solution was dried under reduced pressure, 40 g of a compound represented by the following formula (1-a) was obtained by column chromatography (yield: 53%).

(2) Synthesis of Compound Represented by Formula (1-b)

[Chemical Formula 1-b] was synthesized by the following Reaction Scheme 2.

[Reaction Scheme 2]

   [Chemical Formula 1-b]

40 g (122 mmol) of the compound represented by the formula 1-a obtained from the above-mentioned scheme 1, 29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro- ) and 83.9 g (487.2 mmol) of p -toluenesulfonic acid, 400 mL of ethanol was added, and the mixture was stirred under reflux for 12 hours. After completion of the reaction, the ethanol was removed to the maximum extent and extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure, and the residue was purified by column chromatography to obtain 16 g of a compound represented by the formula (1-b). (Yield: 45%)

(3) Synthesis of Compound Represented by Formula (1-c)

The compound represented by the formula (1-c) was synthesized by the following reaction scheme [3].

[Reaction Scheme 3]

  [Chemical Formula 1-c]

The dried 2 L reactor was purged with nitrogen, and 45.0 g (381 mmol) of 2-aminobenzonitrile and 405 mL of tetrahydrofuran were added thereto. 279 mL (838 mmol) of 3M-phenylmagnesium bromide was slowly added dropwise thereto at 0 ° C, Followed by reflux stirring. When the starting material disappeared, the temperature was lowered again, and then 62.0 g (0.571 mmol) of ethyl chloroformate was dissolved in 200 mL of tetrahydrofuran, and the mixture was slowly added dropwise, followed by stirring under reflux for 2 hours. After the completion of the reaction, the reaction was stopped by adding an aqueous solution of ammonium chloride, and the reaction mixture was extracted with ethyl acetate and water. The organic layer was concentrated under reduced pressure and then separated by column chromatography to obtain 50 g of a compound represented by the formula 1-c. (Yield: 58%)

(4) Synthesis of a compound represented by the formula (1-d)

[Chemical Formula 1-d] was synthesized by the following Reaction Scheme 4.

[Reaction Scheme 4]

   [Chemical formula 1-d]

50.0 g (225 mmol) of the compound represented by the formula (1-c) obtained from the above-mentioned scheme 3 and 500 mL of phosphorus oxychloride are stirred under reflux for 5 hours. When the reaction is complete, slowly drop it in warm water. After the dropwise addition was completed, the solution was filtered, followed by extraction with methylene chloride and water. The organic layer was concentrated under reduced pressure and separated by column chromatography to obtain 41 g of a compound represented by the formula (1-d). (Yield: 75.1%)

(5) Synthesis of Compound Represented by Formula 2

A compound represented by the formula (2) was synthesized by the following reaction scheme (5).

[Reaction Scheme 5]

[Chemical Formula 1-d] [Chemical Formula 2]

8 g (28 mmol) of the compound represented by the formula [1-b] obtained from the above-mentioned scheme 2, 8.6 g (36 mmol) of the compound represented by the formula 1-d obtained from the above scheme 4, 0.5 g (0.6 mmol) of dipalladium, 0.8 g (3 mmol) of tetrabutylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide and 80 mL of xylene were charged And refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 8.3 g of a compound represented by the formula (2) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 494

Synthesis Example 2 Synthesis of Compound Represented by Formula 3

(1) Synthesis of Compound Represented by Formula (2-a)

A compound represented by the formula (2-a) was synthesized by the following reaction scheme [6].

[Reaction Scheme 6]

 [Chemical Formula 2-a]

To a dried 2 L reactor was dissolved 139.8 g (1.236 mol) of ethyl cyanoacetate, 29.5 g (0.453 mol) of potassium cyanide, 46.2 g (0.824 mol) of potassium hydroxide and 920 mL of dimethylformamide under nitrogen, Lt; / RTI > for 20 minutes. 92 g (412 mol) of 1-nitronaphthalene is then added to the reaction mixture and stirred at 60 ° C for 4 hours. After completion of the reaction, the solvent was concentrated, 600 mL of a 10% sodium hydroxide aqueous solution was added, and the mixture was refluxed with stirring for 1 hour. The solid was filtered and subjected to column chromatography with methylene chloride and heptane to obtain 50 g of a compound represented by the formula (2-a). (Yield 60%)

(2) Synthesis of a compound represented by the formula (2-b)

[Chemical Formula 2-b] was synthesized by the following Reaction Scheme 7.

[Reaction Scheme 7]

  [Formula 2-b]

Was synthesized in the same manner as in Synthesis Example 1-3, except that [2-a] was used instead of 2-aminobenzonitrile used in [Reaction Scheme 3] to obtain 104 g of a compound represented by Formula 2-b. (Yield: 63%)

(3) Synthesis of Compound Represented by Formula 2-c

[Chemical Formula 2-c] was synthesized by the following Reaction Scheme 8.

[Reaction Scheme 8]

[Chemical Formula 2-c]

Synthesis was conducted in the same manner as in Synthesis Example 1-4 except that [Formula 2-b] was used instead of [Formula 1-c] used in [Reaction Scheme 4] to obtain 63 g of a compound represented by Formula 2-c . (Yield 60%)

(4) Synthesis of Compound Represented by Formula 3

A compound represented by Formula 3 was synthesized by the following Reaction Scheme 9.

[Reaction Scheme 9]

(3)

Synthesis was conducted in the same manner as in Synthesis Example 1-5 except that [Formula 2-c] was used instead of [Formula 1-d] used in [Reaction Scheme 5] to obtain 9.1 g of a compound represented by Formula 3. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 544

Synthesis Example 3 Synthesis of Compound Represented by Formula 10

(1) Synthesis of Compound Represented by Formula 3-a

A compound represented by the general formula [3-a] was synthesized by the following reaction scheme [10].

[Reaction Scheme 10]

  [Formula 3-a]

In a dried 1000 mL flask, 50 g (178 mmol) of 1,4-dibromo-2-nitrobenzene, 23.9 g (267 mmol) of cupricanide and 312 mL of dimethylformamide were added and stirred at 100 ° C for 1 hour. When the reaction is completed, toluene and water are added, celite is added, stirred for 30 minutes, and then filtered to remove solids. The liquid layer was washed with 1% aqueous ammonia and brine, concentrated under reduced pressure, and then separated by column chromatography to obtain 30 g of a compound represented by the formula (3-a). (Yield: 72%)

(2) Synthesis of Compound Represented by Formula 3-b

[Chemical Formula 3-b] was synthesized by the following Reaction Scheme 11.

[Reaction Scheme 11]

[Formula 3-b]

Add 15 g (66 mmol) of the compound represented by the above formula [3-a] and 150 mL of concentrated hydrochloric acid obtained from the above-mentioned Reaction Scheme 10 and adjust the temperature to 0 ° C., then slowly add 74.55 g (330 mmol) of tin chloride. Stir at room temperature for 1 hour. When the reaction is completed, the temperature of the reactor is adjusted to 0 ° C., and the reaction is brought to a basic state using 10 N sodium hydroxide. The mixture was extracted with ethyl acetate and water. The organic layer was treated with anhydrous magnesium sulfate and distilled under reduced pressure to obtain 12 g of a compound represented by the formula (3-b). (Yield: 92%)

(3) Synthesis of Compound Represented by Formula 3-c

[Chemical Formula 3-c] was synthesized by the following Reaction Scheme 12.

[Reaction Scheme 12]

[Chemical Formula 3-c]

12 g (60.72 mmol) of the compound represented by the formula 3-b, 8.88 g (72.8 mmol) of phenylboronic acid, 1.4 g (1.21 mmol) of tetrakis (triphenylphosphine) 16.78 g (121.44 mmol) of potassium carbonate, 60 mL of 1,4-dioxane, 60 mL of toluene and 24 mL of distilled water are added and stirred at 100 ° C for 12 hours. After the reaction was completed, the temperature was adjusted to room temperature, and the mixture was extracted with ethyl acetate. The organic layer was concentrated and then subjected to column chromatography to obtain 11.4 g of a compound represented by the formula (3-c). (Yield: 97%)

(4) Synthesis of Compound Represented by Formula 3-d

[Chemical Formula 3-d] was synthesized by the following Reaction Scheme [13].

[Reaction Scheme 13]

[Chemical formula 3-d]

Was synthesized in the same manner as in Synthesis Example 1-3 except that [Formula 3-c] was used instead of 2-aminobenzonitrile used in [Reaction Scheme 3] to obtain 11.07 g of a compound represented by Formula 3-d. (Yield: 63%)

(5) Synthesis of Compound Represented by Formula 3-e

[Chemical Formula 3-e] was synthesized by the following Reaction Scheme 14.

[Reaction Scheme 14]

   [Formula 3-e]

Synthesis was conducted in the same manner as in Synthesis Example 1-4, except that [Formula 3-d] was used instead of [Formula 1-c] used in [Reaction Scheme 4] to obtain 63 g of a compound represented by Formula 3-e . (Yield 60%)

(6) Synthesis of Compound Represented by Formula 10

[Chemical Formula 10] was synthesized by the following Reaction Scheme 15.

[Reaction Scheme 15]

[Chemical formula 10]

Was synthesized in the same manner as in Synthesis Example 1-5, except that [Formula 3-e] was used instead of [Formula 1-d] used in [Reaction Scheme 5] to obtain 9.6 g of a compound represented by Formula 10. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 570

Synthesis Example 4 Synthesis of Compound Represented by Formula 11

(1) Synthesis of Compound Represented by Formula 4-a

[Chemical Formula 4-a] was synthesized by the following Reaction Scheme [16].

[Reaction Scheme 16]

 [Chemical Formula 4-a]

The dried 1 L reactor is filled with nitrogen, and then 35.1 g (297 mmol) of 2-aminobenzonitrile and 350 mL of dimethylformamide are stirred. 55.56 g (312 mmol) of N-bromosuccinimide is then slowly added to the reactor. The mixture was stirred at room temperature for 4 hours. When the reaction was completed, distilled water was added dropwise at room temperature. When brown crystals were formed, the crystals were separated by filtration and separated by column chromatography to obtain 54.2 g of a compound represented by the formula 4-a. (Yield: 92.6%)

(2) Synthesis of Compound Represented by Formula 4-b

[Chemical Formula 4-b] was synthesized according to Reaction Scheme 17 below.

[Reaction Scheme 17]

   [Formula 4-b]

12 g (60.72 mmol) of the compound represented by the formula (4-a), 8.88 g (72.8 mmol) of phenylboronic acid and 1.4 g (1.21 mmol) of tetrakis (triphenylphosphine) 16.78 g (121.44 mmol) of potassium carbonate, 60 mL of 1,4-dioxane, 60 mL of toluene and 24 mL of distilled water are added and stirred at 100 ° C for 12 hours. After the reaction was completed, the temperature was adjusted to room temperature, and the mixture was extracted with ethyl acetate. The organic layer was concentrated, and then subjected to column chromatography to obtain 11.4 g of a compound represented by the formula (4-b). (Yield: 97%)

(3) Synthesis of Compound Represented by Formula 4-c

[Chemical Formula 4-c] was synthesized by the following Reaction Scheme 18.

[Reaction Scheme 18]

 [Chemical formula 4-c]

Was synthesized in the same manner as in Synthesis Example 1-3 except that [Formula 4-b] was used instead of 2-aminobenzonitrile used in [Reaction Scheme 3] to obtain 11.07 g of a compound represented by Formula 4-c. (Yield: 63%)

(4) Synthesis of Compound Represented by Formula 4-d

[Chemical formula 4-d] was synthesized by the following scheme [Scheme 19].

[Reaction Scheme 19]

[Chemical formula 4-d]

Synthesis was carried out in the same manner except that [Formula 4-c] was used instead of [Formula 1-c] used in [Reaction Scheme 4] in Synthesis Example 1-4 to obtain 63 g of a compound represented by Formula 4-d . (Yield 60%)

(5) Synthesis of Compound Represented by Formula 11

A compound represented by the formula (11) was synthesized by the following reaction scheme (20).

[Reaction Scheme 20]

(11)

Synthesis was carried out in the same manner except that [Formula 4-d] was used in place of [Formula 1-d] used in [Reaction Scheme 5] in Synthesis Examples 1-5 to obtain 9.6 g of a compound represented by Formula 11. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 570

Synthesis Example 5 Synthesis of Compound Represented by Formula 19

(1) Synthesis of a compound represented by the formula (5-a)

A compound represented by the formula (5-a) was synthesized by the following Reaction Scheme (21).

[Reaction Scheme 21]

  [Formula 5-a]

To the dried reactor, 50 g (235 mmol) of 6-bromobenzothiophene, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, 2.9 g (5 mmol) of bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiary butoxide and 500 mL of toluene were added and refluxed for 12 hours. The filtrate was dried under reduced pressure to obtain 40 g of a compound represented by the following formula (5-a) (yield: 53%) by column chromatography.

(2) Synthesis of Compound Represented by Formula 5-b

[Chemical Formula 5-b] was synthesized by the following Reaction Formula 22.

[Reaction Scheme 22]

[Chemical Formula 5-b]

40 g (122 mmol) of the compound represented by the formula 5-a obtained from the above-mentioned scheme 21 and 29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro- ) and 83.9 g (487.2 mmol) of p -toluenesulfonic acid, 400 mL of ethanol was added, and the mixture was stirred under reflux for 12 hours. At the end of the reaction, the ethanol was removed as much as possible by rotary evaporation, and the mixture was extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure and separated by column chromatography to obtain 16 g of a compound represented by the formula 5-b. (Yield: 45%)

(3) Synthesis of Compound Represented by Formula 19

A compound represented by the formula (19) was synthesized by the following scheme (23).

[Reaction Scheme 23]

[Chemical Formula 19]

8 g (28 mmol) of the compound represented by the formula 5-b] obtained from the above-mentioned Reaction formula 22 and 8.6 g (36 mmol) of the compound represented by the formula 1-d obtained from the [Reaction formula 4] 0.5 g (0.6 mmol) of tris (dibenzylideneacetone) dipalladium, 0.8 g (3 mmol) of tritiated butylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide, 80 mL of rhenylene was added and the mixture was refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 8.3 g of a compound represented by the formula (19) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 494

Synthesis Example 6 Synthesis of Compound Represented by Formula 28

(1) Synthesis of Compound Represented by Formula (6-a)

A compound represented by the general formula [6-a] was synthesized by the following reaction scheme [24].

[Reaction Scheme 24]

[Chemical Formula 6-a]

To the dried reactor were added 50 g (235 mmol) of 4-bromobenzothiophene, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, 2.9 g (5 mmol) of bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiary butoxide and 500 mL of toluene were added and refluxed for 12 hours. After filtration under reduced pressure in a hot state, the solution was dried under reduced pressure to obtain 40 g of a compound represented by the general formula [6-a] by column chromatography (yield: 53%).

(2) Synthesis of Compound Represented by Formula 6-b

[Chemical Formula 6-b] was synthesized by the following Reaction Scheme 25.

[Reaction Scheme 25]

[Chemical Formula 6-b]

40 g (122 mmol) of the compound represented by the above formula [6-a] obtained from 29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro- ) and 83.9 g (487.2 mmol) of p -toluenesulfonic acid, 400 mL of ethanol was added, and the mixture was stirred under reflux for 12 hours. At the end of the reaction, the ethanol was removed to the maximum extent and extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure, and the residue was purified by column chromatography to obtain 16 g of a compound represented by the formula 6-b. (Yield: 45%)

(3) Synthesis of Compound Represented by Formula 28

A compound represented by the formula (28) was synthesized by the following scheme (26).

[Reaction Scheme 26]

  (28)

8 g (28 mmol) of the compound represented by the formula 6-b] obtained from the above-mentioned Reaction Scheme 25 and 8.6 g (36 mmol) of the compound represented by the formula 1-d obtained from the [Reaction Scheme 4] 0.5 g (0.6 mmol) of tris (dibenzylideneacetone) dipalladium, 0.8 g (3 mmol) of tritiated butylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide, 80 mL of rhenylene was added and the mixture was refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 8.3 g of a compound represented by the formula (28) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 494

Synthesis Example 7 Synthesis of Compound Represented by Formula 51

(1) Synthesis of Compound Represented by Formula 7-a

A compound represented by the general formula [7-a] was synthesized by the following reaction scheme [27].

[Reaction Scheme 27]

[Formula 7-a]

To the dried reactor, 46 g (235 mmol) of 6-bromobenzofurane, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, , 2.9 g (5 mmol) of bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiary butoxide and 460 mL of toluene were added and refluxed for 12 hours. After filtration under reduced pressure, the solution was dried under reduced pressure, and 38.9 g of a compound represented by the formula (7-a) was obtained (yield: 53%) by column chromatography.

(2) Synthesis of Compound Represented by Formula 7-b

[Chemical Formula 7-b] was synthesized by the following Reaction Scheme 28.

[Reaction Scheme 28]

  [Formula 7-b]

29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro-1H-inden-1-one and 38.9 g of compound represented by the formula 7- ) and 83.9 g (487.2 mmol) of p -toluenesulfonic acid, 400 mL of ethanol was added, and the mixture was stirred under reflux for 12 hours. After completion of the reaction, the ethanol was removed to the maximum extent, and the mixture was extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure, and the residue was purified by column chromatography to obtain 15 g of a compound represented by the formula 7-b. (Yield: 45%)

(3) Synthesis of Compound Represented by Formula 7-c

[Chemical Formula 7-c] was synthesized by the following Reaction Scheme 29.

[Reaction Scheme 29]

   [Chemical Formula 7-c]

The dried 1 L reactor was charged with nitrogen, and then 50.0 g (297 mmol) of the compound [2-a] obtained in [Synthesis Example 6] in Synthesis Example 2-1 and 500 mL of dimethylformamide were stirred. 55.56 g (312 mmol) of N-bromosuccinimide is then slowly added to the reactor. The mixture was stirred at room temperature for 4 hours. When the reaction was completed, distilled water was added dropwise at room temperature. When brown crystals were formed, the crystals were separated by filtration and separated by column chromatography to obtain 68 g of a compound represented by the formula 7-c. (Yield: 92.6%)

(4) Synthesis of Compound Represented by Formula 7-d

[Chemical Formula 7-d] was synthesized by the following Reaction Formula 30.

[Reaction Scheme 30]

[Chemical Formula 7-d]

68.0 g (275 mmol) of the compound represented by the above formula [7-c], 40.3 g (330 mmol) of phenylboronic acid and 6.36 g (6 mmol) of tetrakis (triphenylphosphine) , Potassium carbonate (76.07 g, 192 mmol), 1,4-dioxane (340 mL), toluene (340 mL) and distilled water (136 mL). When the reaction is complete, extract using ethyl acetate and distilled water. The organic layer was concentrated under reduced pressure and separated by column chromatography to obtain 45 g of a compound represented by the formula [7-d]. (Yield: 66.9%)

(5) Synthesis of Compound Represented by Formula 7-e

[Chemical Formula 7-e] was synthesized by the following Reaction Formula 31.

[Reaction Scheme 31]

[Formula 7-e]

Except that [Formula 7-d] was used in place of 2-aminobenzonitrile used in [Reaction Scheme 3] in Synthesis Example 1-3, 51 g of a compound represented by Formula 7-e was obtained. (Yield: 78%)

(6) Synthesis of Compound Represented by Formula 7-f

[Chemical Formula 7-f] was synthesized by the following Reaction Formula 32.

[Reaction Scheme 32]

[Chemical Formula 7-f]

Synthesis was carried out in the same manner except that [Formula 7-e] was used in place of [Formula 1-c] used in [Reaction Scheme 4] in Synthesis Example 1-4 to obtain 31 g of a compound represented by Formula 7-f . (Yield: 57.8%)

(7) Synthesis of Compound Represented by Formula 51

A compound represented by the following formula (51) was synthesized by the following reaction scheme (33).

[Reaction Scheme 33]

(51)

7.7 g (28 mmol) of the compound represented by the formula (7-b), 13.2 g (36 mmol) of the compound represented by the formula (7-f) 0.5 g (0.6 mmol) of dipalladium, 0.8 g (3 mmol) of tri-tert-butylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide and 77 mL of xylene were placed And refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 10.3 g of a compound represented by the formula (51) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 604

Synthesis Example 8 Synthesis of Compound Represented by Formula 54

(1) Synthesis of Compound Represented by Formula (8-a)

A compound represented by the following formula (8-a) was synthesized by the following reaction scheme.

[Reaction Scheme 34]

[Formula 8-a]

To the dried reactor, 46 g (235 mmol) of 5-bromobenzofurane, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, , 2.9 g (5 mmol) of bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiary butoxide and 460 mL of toluene were added and refluxed for 12 hours. After filtration under reduced pressure, the solution was dried under reduced pressure, and 38.9 g of a compound represented by the following formula (8-a) was obtained by column chromatography (yield: 53%).

(2) Synthesis of Compound Represented by Formula (8-b)

[Chemical Formula 8-b] was synthesized by the following Reaction Scheme 35.

[Reaction Scheme 35]

  [Formula 8-b]

29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro-1H-inden-1-one and 38.9 g of the compound represented by the formula 8- ) and 83.9 g (487.2 mmol) of p -toluenesulfonic acid, 400 mL of ethanol was added, and the mixture was stirred under reflux for 12 hours. After completion of the reaction, the ethanol was removed to the maximum extent and extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure and the residue was purified by column chromatography to obtain 15 g of a compound represented by the following formula 8-b. (Yield: 45%)

(3) Synthesis of Compound Represented by Formula 54

A compound represented by the formula (54) was synthesized according to the following Reaction Formula (36).

[Reaction Scheme 36]

(54)

7.7 g (28 mmol) of the compound represented by the formula (8-b) and 8.6 g (36 mmol) of the compound represented by the formula 1-d obtained from the reaction formula [4] 0.5 g (0.6 mmol) of tris (dibenzylideneacetone) dipalladium, 0.8 g (3 mmol) of tritiated butylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide, 77 mL of phenol was added and the mixture was refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 8.1 g of a compound represented by the formula (54) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 478

Synthesis Example 9 Synthesis of Compound Represented by Formula 66

(1) Synthesis of Compound Represented by Formula 66

A compound represented by the following formula (66) was synthesized by the following scheme (37).

[Reaction Scheme 37]

(66)

7.7 g (28 mmol) of the compound represented by the formula [8-b] obtained from the reaction scheme 35 of Synthesis Example 8-2 and 28 mg of the compound represented by the formula 4-d obtained from the reaction scheme 19- 0.5 g (0.6 mmol) of tris (dibenzylideneacetone) dipalladium, 0.8 g (3 mmol) of trituric butylphosphonium tetrafluoroborate, 5.3 g of sodium tertiary butoxide 55 mmol) and xylenes (77 mL), and the mixture was refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 9.4 g of a compound represented by the formula (66) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 554

Synthesis Example 10 Synthesis of Compound Represented by Formula 71

(1) Synthesis of Compound Represented by Formula 10-a

[Chemical Formula 10-a] was synthesized by the following Reaction Formula [38].

[Reaction Scheme 38]

   [Chemical Formula 10-a]

To the dried reactor was added 63.7 g (235 mmol) of 6-bromo- N -phenylindole, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, , 2.9 g (5 mmol) of 2'-bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiarybutoxide and 460 mL of toluene were added, and the mixture was refluxed for 12 hours. The filtrate was dried under reduced pressure to obtain 48.2 g of a compound represented by the following formula (10-a) (yield: 53%) by column chromatography.

(2) Synthesis of Compound Represented by Formula 10-b

[Chemical Formula 10-b] was synthesized by the following Reaction Formula 39.

[Reaction Scheme 39]

[Chemical Formula 10-b]

29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro-1H-inden-1-one and 38.9 g of the compound represented by the formula 10- ) and 83.9 g (487.2 mmol) of p -toluenesulfonic acid, 400 mL of ethanol was added, and the mixture was stirred under reflux for 12 hours. At the end of the reaction, the ethanol was removed as much as possible by rotary evaporation, and the mixture was extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure and the residue was purified by column chromatography to obtain 19.1 g of a compound represented by the following formula 10-b. (Yield: 45%)

(5) Synthesis of Compound Represented by Formula 71

A compound represented by the formula (71) was synthesized by the following reaction scheme (40).

[Reaction Scheme 40]

(71)

9.8 g (28 mmol) of the compound represented by the general formula [10-b] obtained from the above-mentioned Scheme 39 and 8.6 g (36 mmol) of the compound represented by the general formula [1-d] 0.5 g (0.6 mmol) of tris (dibenzylideneacetone) dipalladium, 0.8 g (3 mmol) of tritiated butylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide, 98 mL of phenol was added and the mixture was refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. After the solution was dried under reduced pressure, 9.4 g of a compound represented by the formula (71) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 553

Synthesis Example 11 Synthesis of Compound Represented by Formula 72

(1) Synthesis of Compound Represented by Formula (11-a)

A compound represented by the following formula (11-a) was synthesized by the following scheme (Scheme 41).

[Reaction Scheme 41]

[Formula 11-a]

To the dried reactor were added 63.7 g (235 mmol) of 5-bromo- N -phenylindole, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, , 2.9 g (5 mmol) of 2'-bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiarybutoxide and 460 mL of toluene were added, and the mixture was refluxed for 12 hours. The filtrate was dried under reduced pressure to obtain 48.2 g of a compound represented by the formula (11-a) (yield: 53%) by column chromatography.

(2) Synthesis of Compound Represented by Formula (11-b)

A compound represented by the formula (11-b) was synthesized by the following reaction scheme (42).

[Reaction Scheme 42]

[Formula 11-b]

29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro-1H-inden-1-one and 38.9 g of the compound represented by the formula 11- ) and p -toluenesulfonic acid (83.9 g, 487.2 mmol) were added 400 mL of ethanol and the mixture was refluxed for 12 hours. After completion of the reaction, the ethanol was removed with a rotary evaporator and the mixture was extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure, and the residue was purified by column chromatography to obtain 19.1 g of a compound represented by the formula (11-b). (Yield: 45%)

(3) Synthesis of Compound Represented by Formula 11-c

[Chemical Formula 11-c] was synthesized by the following Reaction Formula 43.

[Reaction Scheme 43]

[Chemical Formula 11-c]

After charging the dried 1 L reactor with nitrogen, 20.0 g (169 mmol) of 2-aminobenzonitrile and 200 mL of tetrahydrofuran were added, and 113 mL (339 mmol) of 3M-phenylmagnesium bromide was slowly added dropwise at 0 ° C. Lt; / RTI > When the starting material disappeared, the temperature was lowered again, and then 44.58 g (0.203 mmol) of 3-bromobenzoyl chloride was dissolved in 200 mL of tetrahydrofuran, and the mixture was slowly added dropwise, followed by stirring under reflux for 2 hours. After the reaction was completed, the reaction was stopped by adding an aqueous solution of ammonium chloride, and the reaction mixture was extracted with ethyl acetate and water. The organic layer was concentrated under reduced pressure and then subjected to column chromatography to obtain 37 g of a compound represented by Formula 11-c. (Yield: 60.3%)

(4) Synthesis of Compound Represented by Formula 72

A compound represented by the formula (72) was synthesized by the following scheme (44).

[Reaction Scheme 44]

(72)

9.8 g (28 mmol) of the compound represented by the formula 11-b obtained from the above-mentioned scheme 42, 13 g (36 mmol) of the compound represented by the formula 11-c obtained from the above scheme 43, 0.5 g (0.6 mmol) of dipalladium, 0.8 g (3 mmol) of tetrabutylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide and 98 mL of xylene were placed And refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. The solution was dried under reduced pressure, and 10.7 g of a compound represented by the formula (72) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 629

Synthesis Example 12 Synthesis of Compound Represented by Formula 91

(1) Synthesis of Compound Represented by Formula 12-a

[Chemical Formula 12-a] was synthesized by the following Reaction Scheme 45.

[Reaction Scheme 45]

[Chemical Formula 12-a]

To the dried reactor were added 63.7 g (235 mmol) of 4-bromo- N -phenylindole, 46 g (235 mmol) of benzophenone hydrazone, 4.30 g (4.7 mmol) of tris (dibenzylideneacetone) dipalladium, , 2.9 g (5 mmol) of 2'-bis (diphenylphosphino) -1,1'-binaphthyl, 45.1 g (469 mmol) of sodium tertiarybutoxide and 460 mL of toluene were added, and the mixture was refluxed for 12 hours. The filtrate was dried under reduced pressure to obtain 48.2 g of a compound represented by the formula (12-a) (yield: 53%) by column chromatography.

(2) Synthesis of Compound Represented by Formula 12-b

[Chemical Formula 12-b] was synthesized by the following Reaction Formula 46.

[Reaction Scheme 46]

[Chemical Formula 12-b]

29.3 g (183 mmol) of 3,3-dimethyl-2,3-dihydro-1H-inden-1-one and 38.9 g of the compound represented by the formula 12- ) and p -toluenesulfonic acid (83.9 g, 487.2 mmol) were added 400 mL of ethanol and the mixture was refluxed for 12 hours. After completion of the reaction, the ethanol was removed to the maximum extent and extracted with methylene chloride and water. The organic layer was concentrated under reduced pressure, and the residue was purified by column chromatography to obtain 19.1 g of a compound represented by the formula 12-b. (Yield: 45%)

(3) Synthesis of Compound Represented by Formula 91

A compound represented by the following formula (91) was synthesized by the following scheme (47).

[Reaction Scheme 47]

[Formula 91]

9.8 g (28 mmol) of the compound represented by the formula 12-b obtained from the above-mentioned scheme 46 and 11.4 g (36 mmol) of the compound represented by the formula 4-d obtained from the scheme 19- 0.5 g (0.6 mmol) of tris (dibenzylideneacetone) dipalladium, 0.8 g (3 mmol) of tritiated butylphosphonium tetrafluoroborate, 5.3 g (55 mmol) of sodium tertiary butoxide, 98 mL of phenol was added and the mixture was refluxed for 12 hours. When the reaction is completed, the reaction is filtered under reduced pressure in a hot state. The solution was dried under reduced pressure, and 10.7 g of a compound represented by the following formula (91) was obtained by column chromatography. (Yield: 61%)

MS [M] ^< ⁺ & gt ^; : 629

Example: Preparation of organic light emitting diode

The ITO glass was patterned to have a light emitting area of 2 mm x 2 mm and then cleaned. After the substrate was mounted in a vacuum chamber and the base pressure was adjusted to 1 × 10 ^-6 torr, an organic material was added to the ITO using DNTPD (700 Å), α-NPB (300 Å) (10 Å) (300 Å), compound E: Liq = 1: 1 (250 Å), Liq (10 Å) and Al (1,000 Å).

<DNTPD> <α-NPB>

<RD-1><CompoundE><Liq>

Comparative Example

The organic light emitting diode device for the comparative example was fabricated in the same manner except that BAlq, which is generally used as a phosphorescent host material, was used in place of the compound manufactured by the invention in the device structure of the embodiment, and the structure of the BAlq is as follows.

<BAlq>

The voltage, the current density, the luminance, the color coordinate, and the lifetime of the organic electroluminescent device manufactured according to Examples 1 to 12 and Comparative Example 1 were measured, and the results are shown in Table 1 below. T ₉₅ means the time required for the luminance to decrease from the initial luminance (3000 cd / m 2) to 95%.

division Host Doping concentration% V Cd / ㎡ CIEx CIEy T ₉₅ (Hr) Comparative Example 1 BAlq 10 6.2 1510 0.665 0.334 45 Example 1 2 10 4.2 2200 0.664 0.335 310 Example 2 3 10 4.6 2260 0.666 0.333 250 Example 3 10 10 4.5 2150 0.665 0.334 280 Example 4 11 10 4.4 2180 0.665 0.334 330 Example 5 19 10 4.1 2220 0.664 0.335 260 Example 6 28 10 4.4 2100 0.666 0.334 240 Example 7 51 10 4.6 2160 0.664 0.335 300 Example 8 54 10 4.3 2240 0.665 0.334 270 Example 9 66 10 4.3 2120 0.664 0.335 280 Example 10 71 10 4.2 2190 0.664 0.335 320 Example 11 72 10 4.5 2210 0.665 0.334 280 Example 12 91 10 4.3 2170 0.665 0.334 290

As shown in Table 1, the organic electroluminescent device comprising the organic electroluminescent compound according to the present invention has lower driving voltage, higher luminous efficiency, and longer lifetime than BAlq among host materials conventionally used as phosphorescent host materials .

Claims (10)

Organic light-emitting compounds represented by the following formulas 1-1 to 1-2:
[Formula 1-1] [Formula 1-2]

In the above formulas 1-1 to 1-2,
A ₁ to A ₁₆ are each independently CX or N, and two adjacent A's of A ₁ to A ₁₆ are combined with L to form a condensed ring (* denotes a binding site)
Y, Z, W and Q are each independently CR ₁ R ₂ , NR ₃ , O, S, SiR ₄ R ₅ , GeR ₆ R ₇ , BR ₈ , PR ₉ , C═O, Se, At least one of Y, Z, W and Q is NR ₃ (provided that n is an integer of 0 to 3)
The R ₁ To R &lt; ₉ &gt; are the same or different and each independently represents hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, Lt; / RTI &gt; and &lt; RTI ID = 0.0 &gt;
X each independently represent hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, a halogen atom A substituted or unsubstituted alkenyl group having 2 to 60 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 60 carbon atoms, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, A substituted or unsubstituted C2-C60 alkynyl group, a substituted or unsubstituted C1-C60 alkoxy group, a substituted or unsubstituted C3-C60 cycloalkyl group, a substituted or unsubstituted C6-C60 aryl A substituted or unsubstituted arylthio group having 5 to 60 carbon atoms, -SiR ₁₀ R ₁₁ R _12, and -NR ₁₃ R ₁₄ ,
Wherein R ₁₀ to R ₁₄ are independently selected from the group consisting of hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, A halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, Substituted or unsubstituted C2-C60 alkynyl, substituted or unsubstituted C1-C60 alkoxy, substituted or unsubstituted C3-C60 cycloalkyl, substituted or unsubstituted C5- An aryloxy group of 5 to 60 carbon atoms, and a substituted or unsubstituted arylthio group having 5 to 60 carbon atoms. The method according to claim 1,
The R ₁ Each of R ₁₄ and X is independently selected from the group consisting of deuterium, cyano, halogen, hydroxy, nitro, alkyl having 1 to 20 carbon atoms, alkenyl having 1 to 20 carbon atoms, alkynyl having 1 to 20 carbon atoms, A halogenated alkyl group, an aryl group having 5 to 24 carbon atoms, a heteroaryl group having 2 to 24 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryloxy group having 5 to 24 carbon atoms, an alkylsilyl group having 1 to 20 carbon atoms, An arylamine group having 1 to 20 carbon atoms, an arylamine group having 1 to 20 carbon atoms, and an arylamine group having 6 to 24 carbon atoms,
The R ₁ To R &lt; ₁₄ &gt;, X and their substituents are linked to each other or adjacent substituents to form an alicyclic ring, a monocyclic or polycyclic aromatic ring or a heterocyclic ring. The method according to claim 1,
Wherein at least one of Y, Z, W and Q is NR ₃ , R ₃ is any one selected from the following Structural Formulas 1 to 10:
[Structural Formula 1] [Structural Formula 2] [Structural Formula 3] [Structural Formula 4]

[Structural formula 5] [Structural formula 6] [Structural formula 7]

[Structural formula 8] [Structural formula 9] [Structural formula 10]

In the above Structural Formulas 1 to 10,
T ₁ to T ₁₂ are the same or different and each independently selected from C (R ₄₁ ), C (R ₄₂ ) (R ₄₃ ), N, N (R ₄₄ )
R ₄₁ to R ₄₄ are the same or different from each other and each independently represents hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 30 carbon atoms, An aryl group having 5 to 30 carbon atoms, and a heteroaryl group having 2 to 30 carbon atoms having a substituted or unsubstituted hetero atom, O, N, S or P. The method of claim 3,
Wherein R &lt; ₃ &gt; is any one selected from the following [formula 11]:
[Structural Formula 11]

In the above structural formula 11,
X is hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 5 to 30 carbon atoms, an unsubstituted or substituted alkenyl group having 2 to 30 carbon atoms, A substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C5-C30 cycloalkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, A substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms, a substituted or unsubstituted arylthioxy group having 5 to 30 carbon atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms An amino group, a substituted or unsubstituted aryl group having 5 or more carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms having O, N, S, or P as a hetero atom, a cyano group, Is selected from a, m is an integer from 1 to 11, is a plurality of X are the same or different when m is 2 or more. The method according to claim 1,
The organic electroluminescent compound according to any one of claims 1 to 2, wherein the organic electroluminescent compound is any one selected from the group consisting of the following formulas (2) to (261):

[Chemical Formula 2] &lt; EMI ID =

[Chemical Formula 7] [Chemical Formula 8] [Chemical Formula 9]

[Chemical Formula 11] [Chemical Formula 12] [Chemical Formula 13]

[Chemical Formula 14] [Chemical Formula 15]

[Chemical Formula 20] [Chemical Formula 20]

[Chemical Formula 22] [Chemical Formula 23] [Chemical Formula 25]

[Chemical Formula 28] [Chemical Formula 28]

[Chemical Formula 32] [Chemical Formula 32]

[Chemical Formula 35] [Chemical Formula 35]

[Chemical Formula 40] [Chemical Formula 40] [Chemical Formula 40]

[Chemical Formula 43] [Chemical Formula 44] [Chemical Formula 45]

[Chemical Formula 48] [Chemical Formula 48] [Chemical Formula 48]

[Chemical Formula 51] [Chemical Formula 52] [Chemical Formula 53]

[Chemical Formula 55] [Chemical Formula 55] [Chemical Formula 55]

[Chemical Formula 60] [Chemical Formula 61]

[Chemical Formula 62] [Chemical Formula 65] [Chemical Formula 65]

[Chemical Formula 67] [Chemical Formula 68] [Chemical Formula 69]

[Chemical Formula 71] [Chemical Formula 72] [Chemical Formula 73]

[Chemical Formula 75] [Chemical Formula 76] [Chemical Formula 77]

[Formula 79] [Formula 80] [Formula 81]

[Chemical Formula 82]

[Chemical Formula 88] [Chemical Formula 88] [Chemical Formula 89]

[Chemical Formula 91] [Chemical Formula 92] [Chemical Formula 93]

[Chemical Formula 95] [Chemical Formula 96] [Chemical Formula 97]

[Chemical Formula 100] [Chemical Formula 100]

[Formula 103] [Formula 103]

[Chemical Formula 10] [Chemical Formula 10] [Chemical Formula 10] [Chemical Formula 10]

[Formula 110] [Formula 111] [Formula 112] [Formula 113]

[Chemical Formula 115]

[Chemical Formula 120] [Chemical Formula 120] [Chemical Formula 120]

[Formula 124] [Formula 124] [Formula 125]

[Formula 126] &lt; EMI ID = 129.1 &gt;

[Formula 130] &lt; EMI ID = 131.0 &gt;

[Formula 135] [Formula 135] [Formula 137]

[Chemical Formula 140] [Chemical Formula 140] [Chemical Formula 140]

[Chemical Formula 144] [Chemical Formula 144] [Chemical Formula 145]

[Chemical Formula 146] [Chemical Formula 148] [Chemical Formula 149]

[Formula 15] [Formula 15] [Formula 15] [Formula 15]

[Chemical Formula 155] [Chemical Formula 156] [Chemical Formula 157]

[Formula 15] [Formula 15] [Formula 15] [Formula 15] [Formula 15]

[166] [165] [165]

[Formula 166] [Formula 169] [Formula 169]

[173] [173] [173]

[Formula 177] [Formula 177] [Formula 177]

[Formula 181] [Formula 181] [Formula 181] [Formula 181]

[Formula 182] [Formula 184] [Formula 184]

[Formula 188] [Formula 188] [Formula 189]

[Formula 19] [Formula 19] [Formula 193] [Formula 193]

[Formula 19] [Formula 19] [Formula 19] [Formula 19] [Formula 19]

[201] [201] [201]

[Chemical Formula 203]

[Chemical Formula 20] [Chemical Formula 20]

[Chemical Formula 210] [Chemical Formula 212] [Chemical Formula 213]

[Formula 21] [Formula 21] [Formula 21] [Formula 21]

[Formula 21] &lt; EMI ID =

[Formula 22] &lt; EMI ID =

[229] [229] [229]

[233] [232] [233]

[237] [237] [237]

[238] [240] [248]

[245] [242] [242]

[248] [248] [249]

[Formula 252] [Formula 253]

[Formula 25] [Formula 25] [Formula 25] [Formula 25]

[Formula 252] [Chemical Formula 260] [Chemical Formula 261] A first electrode; A second electrode, and at least one organic layer interposed between the first electrode and the second electrode,
Wherein the organic layer comprises at least one organic electroluminescent compound represented by any one of formulas (1-1) to (1-2) according to claim 1. The method according to claim 6,
Wherein the organic layer comprises one or more layers selected from the group consisting of a hole injection layer, a hole transport layer, a functional layer having both a hole injection function and a hole transport function, a light emitting layer, an electron transport layer and an electron injection layer. 8. The method of claim 7,
Wherein the organic layer interposed between the first electrode and the second electrode comprises a light emitting layer. 9. The method of claim 8,
Wherein the light emitting layer comprises a host compound and a dopant compound, and the organic light emitting compound represented by any one of formulas (1-1) to (1-2)
Wherein the light emitting layer further comprises at least one dopant compound. The method according to claim 6,
Wherein the organic layer further comprises one or more organic luminescent layers emitting red, green or blue light to emit white light.

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