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An organic compound, unsubstituted technology, applied in the field of organic electroluminescent materials, can solve problems such as difficulty in meeting the performance requirements of high-performance OLED devices, achieve high glass transition temperature and thermal stability, improve overall performance, and reduce operating voltage and energy consumption
Pending Publication Date: 2022-05-06
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
[0005] With the continuous development of display technology, people have put forward higher requirements for the optoelectronic properties of OLED devices. However, the host materials currently used still have many shortcomings in terms of luminous performance, stability, working life, and processability. It is difficult to meet the performance requirements of high-performance OLED devices
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Synthetic example 1
[0114] Synthesis is used to prepare the intermediate of described organic compound, concrete steps are as follows:
[0115] (1) Synthesis of Intermediate 1
[0116]
[0117] In a 1L three-necked flask, add 0.1mol reactant M1, 0.1mol reactant M2, 0.30mol potassium carbonate, 165.6g water, 1.0mmol tetrakistriphenylphosphine palladium Pd (PPh 3 ) 4 , 400mL toluene, 100mL absolute ethanol, N 2 Under protection, raise the temperature to reflux, keep the reaction for 8 hours, stop the reaction, lower the temperature to 25°C, separate the liquid, collect the organic phase, wash with water until neutral, remove the solvent from the organic phase under reduced pressure, and use pure toluene column chromatography to purify, toluene, no Recrystallized from water and ethanol to obtain intermediate 1 with a yield of 85%.
[0118] (2) Synthesis of Intermediate 2
[0119]
[0120] In a 1L three-necked flask, add 0.1mol intermediate 1, 0.375mol sodium hydroxide, 400mL absolute ethan...
Synthetic example 2
[0128] Synthesis is used to prepare the intermediate of described organic compound, concrete steps are as follows:
[0129]
[0130] The only difference from Synthesis Example 1 is that the reactant M3 in step (4) is replaced with an equimolar amount of M3-A, and other raw materials, dosages and process parameters are the same as Synthesis Example 1 to obtain intermediate 4-A.
Synthetic example 3
[0132] Synthesis is used to prepare the intermediate of described organic compound, concrete steps are as follows:
[0133]
[0134] The only difference from Synthesis Example 1 is that the reactant M2 in step (1) is replaced with an equimolar amount of reactant M2-B, and other raw materials, dosages, steps, and process parameters are the same as those in Synthesis Example 1 to obtain the intermediate 4-B.
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Abstract
The invention provides an organic compound and application thereof.The organic compound has the structure shown in the formula I. Through the design of the molecular structure, the organic compound has appropriate HOMO and LUMO energy levels, the singlet state energy level is high, the photoelectric property is excellent, the glass transition temperature and thermal stability are high, a good amorphous film is easily formed, and the organic compound can be applied to the field of organic light emitting devices. The method is suitable for processing and application of OLED devices. The organic compound is used for an OLED device, can be used as a luminescent layer material, an electron transport material or a hole blocking material, is especially suitable for a luminescent layer main body material, and can effectively improve the luminescent efficiency of the device, improve the stability of the device, prolong the service life and reduce the working voltage and energy consumption; and the comprehensive properties such as luminous efficiency, service life, energy consumption and the like of the OLED device are remarkably improved.
Description
technical field [0001] The invention belongs to the technical field of organic electroluminescent materials, and in particular relates to an organic compound and its application. Background technique [0002] Compared with the traditional inorganic electroluminescence technology, organic electroluminescence (OLE) technology, as a new generation display technology, has ultra-thin, self-illuminating, wide viewing angle, fast response, high luminous efficiency, good temperature adaptability, production With the advantages of simple process, low driving voltage, and low energy consumption, it has been widely used in industries such as flat panel display, flexible display, solid-state lighting, and vehicle display. [0003] The core of organic electroluminescent technology lies in organic electroluminescent materials. Organic electroluminescent materials can be divided into electroluminescence and electrophosphorescence according to the luminescence mechanism. Electroluminescence...
Claims
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Application Information
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