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Polycyclic aromatic compound, material for organic devices, organic electroluminescent element, display device, and lighting device

A polycyclic aromatic compound technology, which is applied in the fields of display devices and lighting devices, can solve the problems of undocumented production methods of NO-linked compounds, different electronic states, unknown characteristics, etc.

Pending Publication Date: 2020-12-01
KWANSEI GAKUIN EDUCATIONAL FOUND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the literature, for example, the charge transport properties of the NO-linked compound (compound 1 on page 63) are evaluated, but there is no description of the production method of materials other than the NO-linked compound, and if the linked elements are different, Since the electronic state of the compound as a whole is different, the characteristics obtained from materials other than NO-linked compounds are not yet known.

Method used

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  • Polycyclic aromatic compound, material for organic devices, organic electroluminescent element, display device, and lighting device
  • Polycyclic aromatic compound, material for organic devices, organic electroluminescent element, display device, and lighting device
  • Polycyclic aromatic compound, material for organic devices, organic electroluminescent element, display device, and lighting device

Examples

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Embodiment

[0769] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to the said Example. First, a synthesis example of a polycyclic aromatic compound will be described below.

Synthetic example (1

[0770] Synthesis Example (1): Synthesis of Compound (1-901)

[0771]

[0772] Under nitrogen atmosphere, compound (I-1) (3.05g, 10mmol), compound (I-2) (3.35g, 12mmol), potassium carbonate (4.10g, 30mmol), two (di-tert-butyl (4 -Dimethylaminophenyl) phosphine) dichloropalladium (II) (Pd-132: 0.0783g, 0.1mmol) and tetrabutylammonium bromide (TBAB: 0.97g, 3mmol) were put into a flask, and toluene ( 30ml) and distilled water (15ml), heated to reflux for 2 hours. The precipitated solid was suction-filtered, washed with water and heptane, and the obtained crude product was purified with a short column of silica gel (eluent: chlorobenzene), whereby it was obtained as a white solid Compound (1-901) was obtained (yield: 0.56 g).

[0773]

Synthetic example (2

[0774] Synthesis Example (2): Synthesis of Compound (1-902)

[0775]

[0776] Under nitrogen atmosphere, compound (I-3) (3.08g, 10mmol), compound (I-2) (3.35g, 12mmol), potassium carbonate (4.08g, 30mmol), two (di-tert-butyl (4 -Dimethylaminophenyl) phosphine) dichloropalladium (II) (Pd-132: 0.0775g, 0.1mmol) and tetrabutylammonium bromide (TBAB: 1.00g, 3mmol) were put into a flask, and toluene ( 30ml) and distilled water (15ml), heated to reflux for 14 hours. The precipitated solid was suction-filtered, washed with water and heptane, and the obtained crude product was purified with a short column of silica gel (eluent: chlorobenzene), whereby it was obtained as a white solid Compound (1-902) was obtained (yield: 1.27 g).

[0777]

[0778] Other polycyclic aromatic compounds of the present invention can be synthesized by the method according to the above-mentioned synthesis examples by appropriately changing the compounds used as raw materials.

[0779] Next, examples...

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Abstract

The present invention relates to a nitrogen-containing substituent polycyclic aromatic compound represented by formula (BiN) introduced into a polycyclic aromatic compound represented by formula (1) in which a plurality of aromatic rings are linked by boron atoms, oxygen atoms, or the like; a material for organic devices; an organic electroluminescent element; a display device; and a lighting device. By means of the compound of the present invention, it is possible to provide a material for an electron transport layer or a material for an electron injection layer having both high electron injection characteristics and high electron mobility, thereby making it possible to produce an organic device such as an organic EL element having a low driving voltage.

Description

technical field [0001] The present invention relates to a polycyclic aromatic compound and its multimer (hereinafter also collectively referred to as "polycyclic aromatic compound"), materials for organic devices using them, organic electroluminescent elements, organic field-effect transistors and organic Thin-film solar cells, and display devices and lighting devices. In addition, in this specification, an "organic electroluminescence element" may be expressed as an "organic EL (electroluminescence, electroluminescence) element" or simply an "element". Background technique [0002] Conventionally, display devices using light-emitting elements that perform electroluminescence have been studied in various ways because they enable power saving and thinning. Furthermore, organic electroluminescent elements made of organic materials have been actively studied because they can be easily reduced in weight or increased in size. In particular, regarding the development of organic m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02H01L51/00H01L51/50H01L51/54H10K99/00
CPCC07F5/02H10K85/656H10K85/615H10K85/626H10K85/654H10K85/657H10K85/6572H10K50/171H10K50/16Y02E10/549C07F5/027H05B33/00H10K59/00H10K85/322
Inventor 畠山琢次川角亮介增田胜也
Owner KWANSEI GAKUIN EDUCATIONAL FOUND