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Indenofluoranthene compound and application thereof
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A technology of indenofluoranthene and compound, applied in the field of organic electroluminescence display
Pending Publication Date: 2020-06-05
北京燕化集联光电技术有限公司
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However, there is still much room for improvement in the luminescence performance of existing organic electroluminescent materials, and the industry urgently needs to develop new organic electroluminescent materials.
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preparation example Construction
[0050] According to the preparation method provided by the present invention, those skilled in the art can use known common means to realize, such as further selecting a suitable catalyst and solvent, determining a suitable reaction temperature, time, etc., which are not particularly limited in the present invention. The solvents, catalysts, bases and other raw materials used in the preparation process can be synthesized through open commercial channels or methods known in the art.
[0051] By adopting the preparation method provided by the invention, the invention provides a series of indenofluoranthene structure compounds.
[0056] The synthesis of compound I-4 comprises the following specific steps:
[0057] Take a 1-liter three-neck flask, equipped with magnetic stirring, and add potassium tert-butoxide (36.2g, 0.376mol), 3,4'-dimethyldiphenylamine (41.37g, 0.21mol, purity 99%) and toluene in sequence after nitrogen replacement 100ml. After nitrogen replacement again, (1.2 g, 0.006 mol) tri-tert-butylphosphine and (0.7 g, 0.003 mol) palladium acetate were added in sequence. After the addition was complete, the temperature was raised to 85°C. A solution consisting of (43.41 g, 0.1 mol, purity 99%) M1 and 100 ml of toluene was started to be added dropwise, and the temperature was controlled to react within the range of 80-120° C. for 4 hours, and the reaction was completed. Adjust to neutrality, separate the organic phase, extract, dry, perform column chromatography, and spin dry the solvent to obtain 53.3 g of a light yellow s...
[0063] The synthesis of compound 1-5 comprises the following specific steps:
[0064] N-(1,1'-biphenyl)-3-yl)naphthalene-1-amine and M2 are used to replace 3,4'-dimethyldiphenylamine and M1 described in Example 1 in equal equivalents, and other reactions The conditions and operations were the same as in Example 1, and 74.23 g of a light yellow solid was obtained, with a yield of about 86%.
[0065] Product MS (m / e): 862.33; Elemental analysis (C 66 h 42 N 2 ): theoretical value C: 91.85%, H: 4.91%, N: 3.25%; measured value C: 91.83%, H: 4.92%, N: 3.25%.
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Abstract
The invention relates to the technical field of organic electroluminescent display, particularly discloses an organic material with a novel indenofluoranthene structure, and also discloses an application of the organic material in an organic electroluminescent device. The novel indenofluoranthene structure compound provided by the invention is shown as a general formula (I), the indenofluoranthenestructure compound is used as a parent nucleus, and the material has high hole mobility, good film stability and suitable molecular energy level, also has good thermal stability, can be applied to the field of organic electroluminescence, and is used as a hole transport material. The novel indenofluoranthene structure compound provided by the invention can be well applied to an OLED device, and the device has the advantages of low driving voltage and high luminous efficiency.
Description
technical field [0001] The invention relates to the technical field of organic electroluminescent display, in particular to a novel organic material with indenofluoranthene structure, and also relates to its application in organic electroluminescent devices. Background technique [0002] The application of organic electroluminescent (OLED) materials in information display materials, organic optoelectronic materials and other fields has great research value and bright application prospects. With the development of multimediainformation technology, the performance requirements of flat panel display devices are getting higher and higher. At present, the main display technologies include plasma display devices, field emission display devices and organic electroluminescent display devices (OLED). Among them, OLED has a series of advantages such as self-luminescence, light and thin power saving, full curing, wide viewing angle, and rich colors. Compared with liquid crystal displ...
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Application Information
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