Material for organic electroluminescence device and organic electroluminescence device thereof
An electroluminescence device and luminescence technology, applied in the direction of electric solid-state devices, organic chemistry, electrical components, etc., can solve the problems of inability to effectively improve the luminous efficiency of the device, the service life of the device, the poor stability of resistance to water and oxygen, and the low refractive index. Good film stability, easy film formation, and high luminous efficiency
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Embodiment 1
[0097] The synthesis of embodiment 1 compound 1
[0098]
[0099] Under nitrogen atmosphere, add 5-bromo-2-iodopyrimidine (56.98g, 200mmol), potassium phosphate (127.36g, 600mmol), phenylboronic acid (26.82g, 220mmol), dioxane solution (500mL) into the reactor [1,1'-bis(diphenylphosphino)ferrocene]palladium dichloride (2.92 g, 4 mmol) dissolved in 10 mL of dioxane was stirred and heated to 120° C. for 20 minutes. HPLC detects reaction, after reaction finishes, add 100mL dichloromethane solution, and filter by diatomaceous earth, concentrate filtrate, cross silica gel column chromatography purification (10:1 hexane and ethyl acetate are eluent), concentrate to obtain Intermediate 1-1 (40.90g, 87%) is a white solid, and the purity of the solid is ≧98.9% by HPLC.
[0100] Under nitrogen atmosphere, intermediate 1-1 (37.62g, 160.0mmol), biboronic acid pinacol ester (81.26g, 320.0mmol), potassium acetate (47.10g, 480.0mmol), dioxane solution were added to the reactor 500 mL of...
Embodiment 2
[0104] The synthesis of embodiment 2 compound 5
[0105]
[0106] Add 400mL of toluene to the reaction flask, followed by adding 2-bromo-9,9-dimethyl-9,10-dihydroacridine (57.64g, 200mmol), phenylboronic acid (26.82g, 220mmol), and 150mL of ethanol , Potassium Carbonate (82.92g, 600mmol) aqueous solution, evacuated and filled with nitrogen three times, put into Pd (pph 3 ) 4 (2.31g, 2mmol), continue to vacuumize and replace with nitrogen three times, reflux and stir at 80°C for 4h, then stop heating, add 240mL of water and stir for 0.5h, cool down to 40°C and filter under reduced pressure, then use water (160mL) Rinse the filter cake with acetone (200mL) to ensure that the filtrate is neutral, dry the filter cake at 100°C, dissolve the filter cake with chloroform, filter through an active silica gel funnel, concentrate the solution to 500mL, add 50mL of ethanol to recrystallize while stirring , and filtered under reduced pressure to obtain intermediate 5-1 (47.37g, 83%), ...
Embodiment 3
[0111] The synthesis of embodiment 3 compound 6
[0112]
[0113] Add 400mL of toluene to the reaction flask, then add 2,7-dibromo-9,9-dimethylacridine (73.42g, 200mmol), phenylboronic acid (53.64, 440mmol), 400mL of ethanol, potassium carbonate (82.92 g, 600mmol) of aqueous solution, evacuated and filled with nitrogen three times, put Pd (pph 3 ) 4 (2.31g, 2mmol), continue to vacuumize and replace with nitrogen three times, reflux and stir at 80°C for 4h, then stop heating, add 240mL of water and stir for 0.5h, cool down to 40°C and filter under reduced pressure, then use water (160mL) Rinse the filter cake with acetone (200mL) to ensure that the filtrate is neutral, dry the filter cake at 100°C, dissolve the filter cake with chloroform, filter through an active silica gel funnel, concentrate the solution to 500mL, add 50mL of ethanol to recrystallize while stirring , and filtered under reduced pressure to obtain intermediate 6-1 (57.84 g, 80%), and the purity of the sol...
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