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Triphenylamine structure-containing compound, and preparation method and application thereof
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A technology of triphenylamine and compound is applied in the field of compound containing triphenylamine structure and its preparation, and achieves the effects of improving transmittance, improving luminous efficiency and saving cost
Inactive Publication Date: 2017-11-28
CHANGCHUN HYPERIONS TECH CO LTD
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[0004] Organic electroluminescent materials have continuously achieved breakthroughs in recent years, and have made remarkable progress, posing a strong challenge to traditional display materials.
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Embodiment 1
[0049] Preparation of compound TM1
[0050]
[0051] Preparation of intermediate C1:
[0052] Add A1 (3.83g, 22.63mmol), B1 (5.34g, 22.63mmol), 100μl of tri-tert-butylphosphine, sodium tert-butoxide (0.85g, 22.63mmol), tri-tert-butylphosphine ( 1.83g, 22.63mmol), tris(dibenzylideneacetone) (0.24g, 22.63) palladium was dissolved in 80ml of dehydrated toluene, under the protection of high-purity nitrogen, heated to reflux for 10 hours, cooled to room temperature, and poured into 100ml of secondary water . Extract with toluene, add anhydrousmagnesiumsulfate to dry and dehydrate at the same time, and then concentrate by rotary evaporation. After separation by silica gelchromatography, the target intermediate C1 was obtained with a yield of 76%.
[0053] Preparation of intermediate E1:
[0054] Add D1 (2.63g, 16.73mmol) and intermediate C1 (6.90g, 16.73mmol) to a clean two-necked flask, while adding aluminum trichloride (1.71g, 16.73mmol), aluminum oxide (1.71g, 16.73 mm...
Embodiment 2
[0058] Preparation of compound TM2
[0059] R 2 = CN
[0060] R in Example 1 2 Replace with R as shown above 2 , other steps were the same as in Example 1 to obtain compound TM3. Mass Spectrum m / z: 720.23 (calculated: 720.24). Theoretical element content (%)C 50 h 32 N 4 S: C, 83.31; H, 4.47; N, 7.77; S, 4.45. Measured element content (%): C, 83.32; H, 4.48; N, 7.76; S, 4.43. It was confirmed above that the obtained product was the target product TM2.
Embodiment 3
[0062] Preparation of Compound TM6
[0063] R 2 =F
[0064] R2 in Example 1 was replaced by R2 as shown above, and the other steps were the same as in Example 1 to obtain compound TM6. Mass Spectrum m / z: 706.23 (calculated: 706.25). Theoretical element content (%)C 48 h 32 f 2 N 2 S: C, 81.56; H, 4.56; F, 5.38; N, 3.96; S, 4.54. Measured element content (%): C, 81.54; H, 4.53; F, 5.36; N, 3.95; S, 4.53. It was confirmed above that the obtained product was the target product TM6.
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Abstract
The invention provides a triphenylamine structure-containing compound, and a preparation method and an application thereof, and belongs to the technical field of organic photoelectric materials. The compound has a structure represented by formula (I). Organic electroluminescent devices produced from the triphenylamine structure-containing compound have a high luminous efficiency and a low driving voltage, so the compound can effectively improve the luminous efficiency of the OLEDs and make the OLEDs in the invention better than existing common OLEDs when used as a light extraction material in the organic electroluminescent devices.
Description
technical field [0001] The invention relates to the technical field of organic photoelectric materials, in particular to a compound containing a triphenylamine structure and a preparation method and application thereof. Background technique [0002] With the progress of the information industry, traditional displays can no longer meet people's requirements, such as: cathoderay tube (CRT) displays have large volume and high driving voltage; liquid crystal displays (liquid crystal display, LCD) have low brightness and narrow viewing angles. , The operating temperature range is small; the plasma display panel (PDP) is expensive, the resolution is not high, and the power consumption is large. [0003] Organic light-emitting diodes (organic light-emitting diodes, OLEDs) as a new display technology has unparalleled advantages in various performances of existing display technologies, such as full solid state, self-luminous, high brightness, high resolution , wide viewing angle (a...
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