Organic luminescent material, method for preparing same and application of organic luminescent material
A luminescent material, organic technology, applied in the direction of luminescent materials, organic chemistry, chemical instruments and methods, etc., can solve the problems of difficult material application display, color purity, efficiency and thermal stability, blue color purity is not high enough, etc., to achieve Excellent electroluminescent properties, simple synthesis method, high efficiency effect
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[0058] Step 1, the preparation of intermediate 1
[0059] Dissolve compound 1 in anhydrous tetrahydrofuran, cool the reaction solution to 0°C, and dropwise add 1 Grignard reagent of the substituent, carry out the reaction, when a white solid appears, use saturated NHCl 4 Quenching; using diethyl ether to extract, then separating the liquids, merging the organic phases, and concentrating to leave a small amount of solvent; using petroleum ether and dichloromethane as mobile phases, separating and purifying by column chromatography to obtain intermediate 1;
[0060] Step 2, the preparation of intermediate 2
[0061] Intermediate 1 and containing Ar 1 Dissolve the bromide of the substituent in dichloromethane, add boron trifluoride etherate complex dropwise at room temperature, and after a period of time, slowly add the reaction solution into cold water while stirring to quench, separate the liquids, and extract with dichloromethane Three times, the organic phases were combine...
Embodiment 1
[0069]
[0070] Synthesis of Intermediate C-1:
[0071] Xanthanone (70mmol) was dissolved in 100mL of anhydrous tetrahydrofuran, the reaction solution was cooled to 0°C, and the Grignard reagent phenylmagnesium bromide (77mmol) was added dropwise in a nitrogen-protected environment, and the reaction was slowly heated to 50°C. At 12 hours, a white solid appeared. Use saturated NHCl 4 Quenching is performed. Extract with diethyl ether, then separate the layers, combine the organic phases, and concentrate until a small amount of solvent remains. Using petroleum ether and dichloromethane (2:1) as the mobile phase, separation and purification were carried out by column chromatography. Compound C-1 (59.5 mmol) was obtained.
[0072] Synthesis of Intermediate E-1:
[0073] Bromobenzene (100mmol) and compound C-1 (50mmol) were dissolved in 150mL of dichloromethane, and 15mL of boron trifluoride etherate complex was added dropwise at room temperature. After 1 hour, the reaction...
Embodiment 2-16
[0077] According to the synthetic route of compound 1 in Example 1, adjust the corresponding starting material A and intermediates B and F to obtain different compounds. The specific data are shown in the table below:
[0078]
[0079]
[0080]
[0081] OLEDs were produced using the compounds of the invention.
[0082] [Example 1]
[0083] Apply a Fisher Coating Thickness of The ITO glass substrate is cleaned twice in distilled water, ultrasonically washed for 30 minutes, washed twice with distilled water, ultrasonically washed for 10 minutes, after the distilled water is cleaned, isopropanol, acetone, methanol and other solvents are ultrasonically washed in sequence and then dried. Transfer to the plasma cleaning machine, wash the above-mentioned substrate for 5 minutes, and send it to the vapor deposition machine. Evaporate 4,4',4"-tris[2-naphthylphenylamino]triphenylamine (2-TNATA) with a thickness of 50 nm on the prepared ITO transparent electrode as a hole in...
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