Polycyclic aromatic compound

Abstract

To provide novel compounds suitable as materials for organic devices such as organic EL elements.SOLUTION: Provided is a polycyclic aromatic compound having a structure comprising one or two or more structural units represented by formula (1), wherein at least one of rings A to C is an aryl ring or heteroaryl ring having a substituent represented by formula (EABC), and J is a group represented by formula (1Ar) or formula (2Ar).SELECTED DRAWING: Figure 1

Claims

1. A polycyclic aromatic compound having a structure consisting of one or more structural units represented by the following formula (1): 【Chemistry 1】 【Chemistry 2】 In formula (1), ring A, ring B and ring C each independently represent a substituted or unsubstituted aryl ring, or a substituted or unsubstituted heteroaryl ring; However, at least one selected from the group consisting of ring A, ring B, and ring C is represented by the formula (E ＡＢＣ or an aryl ring having a group represented by the formula (E ＡＢＣ ) as a substituent, J's are each independently a group represented by formula (1Ar) or formula (2Ar), and at least one J is a group represented by formula (1Ar); Formula (E ＡＢＣ ) in * indicates the position of attachment to the aryl ring or heteroaryl ring, ring P and ring Q each independently represent a substituted or unsubstituted aryl ring, or a substituted or unsubstituted heteroaryl ring; In formula (1Ar) and formula (2Ar), # represents the bond position to nitrogen, ring D and ring E each independently represent a substituted or unsubstituted aryl ring, or a substituted or unsubstituted heteroaryl ring; In formula (1Ar), G are the same or different and are hydrogen, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted arylthio, substituted or unsubstituted heteroarylthio, substituted or unsubstituted aryloxy, substituted or unsubstituted heteroaryloxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, or substituted or unsubstituted silyl, and at least one G is substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted arylthio, substituted or unsubstituted heteroarylthio, substituted or unsubstituted aryloxy, substituted or unsubstituted heteroaryloxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, or substituted or unsubstituted silyl; In the above structures, the substituents substituted on adjacent atoms of the aryl ring and the heteroaryl ring may be bonded to each other to form a ring, In the above structure, at least one of the aryl and heteroaryl rings can be fused to at least one cycloalkane, the cycloalkane can have a substituent, and at least one of the cycloalkanes has a -CH ２ - may be replaced by -O-; At least one hydrogen in the structure may be replaced with cyano or halogen; In the above structure, at least one hydrogen may be replaced with deuterium and at least one nitrogen is １５ nitrogen( １５ N), at least one sulfur is ３３ sulfur( ３３ S), ３４ sulfur( ３４ S) or ３６ sulfur( ３６ S), at least one oxygen may be substituted １７ oxygen( １７ O) or １８ oxygen( １８ O), at least one carbon atom is １３ carbon( １３ C), at least one boron may be substituted １１ Boron ( １１ B) may be substituted.

2. The polycyclic aromatic compound according to claim 1, wherein ring A, ring B, ring C, ring D, ring E, ring P and ring Q are each independently a substituted or unsubstituted aryl ring having 6 to 16 carbon atoms, or a substituted or unsubstituted heteroaryl ring having 2 to 15 carbon atoms.

3. ring A, ring B, ring C, ring D and ring E each independently represent a substituted or unsubstituted aryl ring, or a substituted or unsubstituted heteroaryl ring; the aryl ring is selected from the group consisting of a benzene ring, a biphenyl ring, an indene ring, a naphthalene ring, a fluorene ring, an anthracene ring, and a phenanthrene ring; The polycyclic aromatic compound according to claim 2, wherein the heteroaryl ring is selected from the group consisting of a benzofuran ring, a benzothiophene ring, an indole ring, a dibenzofuran ring, a dibenzothiophene ring, a carbazole ring, a naphthofuran ring, a naphthothiophene ring, a benzoindole ring, a benzoselenophene ring, a dibenzoselenophene ring, a silaindene ring, and a silafluorene ring.

4. Formula (E ＡＢＣ ) is represented by the following formula (E ＡＢＣ -1), formula (E ＡＢＣ -2), formula (E ＡＢＣ -3), formula (E ＡＢＣ -4) or formula (E ＡＢＣ The polycyclic aromatic compound according to claim 1, characterized in that it is represented by the formula: 【Chemistry 3】 Formula (E ＡＢＣ -1), formula (E ＡＢＣ -2), formula (E ＡＢＣ -3), formula (E ＡＢＣ -4) and formula (E ＡＢＣ In -5), Z Ｅ Each independently represents -C(-R ＺＥ )= or -N=, and R ＺＥ is hydrogen, halogen, cyano, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkyl, or substituted or unsubstituted cycloalkyl; Z Ｘ Each independently represents -C(-R ＺＸ )= or -N=, and R ＺＸ is hydrogen, halogen, cyano, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkyl, or substituted or unsubstituted cycloalkyl; Y １ is > N-R ＮＹ , >C(-R ＣＹ ) ２ , >O, >Si(-R ＩＹ ) ２ , > P-R ＰＹ , >P(=O)R ＰＯＹ , >S, >SO, >SO ２ or >Se, R ＮＹ , R ＣＹ , R ＩＹ , R ＰＹ and R ＰＯＹ are each independently hydrogen, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkyl, or substituted or unsubstituted cycloalkyl; ＣＹ may be bonded to each other to form a ring, and two R ＩＹ may be bonded to each other to form a ring.

5. The polycyclic aromatic compound according to claim 1, wherein the formula (1) is represented by the following formula (1X1): 【Chemistry 4】 In formula (1X1), J is the same as J in formula (1), R ａ is hydrogen or unsubstituted alkyl, R ｂ are the same or different, and at least one R ｂ is the formula (E ＡＢＣ ).

6. R ｂ Each independently represents the formula (E ＡＢＣ -1), formula (E ＡＢＣ -2), formula (E ＡＢＣ -3), formula (E ＡＢＣ -4) or formula (E ＡＢＣ 6. The polycyclic aromatic compound according to claim 5, wherein

7. The polycyclic aromatic compound according to claim 1, wherein J is each independently a group represented by the following formula (1Ar-1) or formula (2Ar-1): 【Chemistry 5】 In formula (1Ar-1) and formula (2Ar-1), R ｅ each independently represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted silyl; R ｄ each independently represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, or substituted or unsubstituted aryl; R ｄｄ is hydrogen or a substituted or unsubstituted aryl; In formula (1Ar-1), G are the same or different and are hydrogen, unsubstituted alkyl, alkyl halide, unsubstituted cycloalkyl, unsubstituted aryl, or unsubstituted heteroaryl, and at least one G is unsubstituted alkyl, alkyl halide, unsubstituted cycloalkyl, unsubstituted aryl, or unsubstituted heteroaryl.

8. The polycyclic aromatic compound according to claim 1 , wherein each J is independently a group represented by formula (1Ar).

9. The polycyclic aromatic compound according to claim 1 , which is represented by any one of the following formulas: 【Chemistry 6】 【Chemistry 7】 【Chemistry 8】

10. An organic electroluminescence device comprising a pair of electrodes consisting of an anode and a cathode, and an organic layer disposed between the pair of electrodes, the organic layer containing the polycyclic aromatic compound according to any one of claims 1 to 9.

11. The organic electroluminescent device according to claim 10, wherein the organic layer is a light-emitting layer.

12. The organic electroluminescent device according to claim 11, wherein the light-emitting layer comprises at least one selected from the group consisting of an assisting dopant and a phosphorescent material.

13. A display device or a lighting device comprising the organic electroluminescent device according to claim 10.

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