Pyridine diindyl compound and organic light emitting device thereof
An indole compound, pyridine technology, applied in the direction of light-emitting materials, organic chemistry, electro-solid devices, etc., can solve the problems of inability to improve and reduce the luminous efficiency, and achieve good luminous efficiency, improve hole mobility, and high efficiency. Effect
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Embodiment 1
[0067] Embodiment 1:
[0068] * Preparation of Intermediate A-1
[0069]
[0070] Add bis(4-biphenylene)amine (19.0g, 59.1mmol), bisbromobiphenyl (18.44g, 59.1mmol), tris(dibenzylideneacetone)dipalladium (0.1g) into the reaction vessel under nitrogen, Tri-tert-butylphosphine (15%, 0.3g), sodium tert-butoxide (1.8g), toluene (300ml) were stirred at 60°C for 12 hours. The reaction liquid was cooled and filtered through a silica gel filter funnel, the solution was concentrated, and column chromatography was performed on dichloromethane and hexane to obtain (A-1) (22.21 g, yield 68%).
[0071] * Preparation of intermediate 2-31-B
[0072]
[0073] Iodobenzene (20mmol, 4.08g), 2-31-A (20mmol, 4.94g) was added to a 100mL three-necked flask, copper iodide (2mmol, 0.4g), potassium carbonate (20mmol, 1.4g) was added under nitrogen, and o Phenanthroline (2mmol, 0.4g), DMF 50mL, reacted at 155°C for 3d. Post-processing: extraction, the organic phase was evaporated to dryness, ...
Embodiment 2
[0089] *Example 2. Preparation of compound 2-31
[0090]
[0091] Add 2-31-C (4.87g, 16.9mmol), A-1 (9.34, 16.9mmol), tetrakistriphenylphosphine palladium (0.7g, 1.08mmol), potassium carbonate (5.3g, 38.3mmol) into the reaction vessel , toluene 500mL, ethanol 40mL and distilled water 40mL, stirred at 120°C for 3h. The reaction was stopped with distilled water and extracted with ethyl acetate. The organic layer was dried over MgSO4. The solvent was distilled off under reduced pressure and purified with a silica gel column to obtain compound 2-31 (6.05 g, 50%).
Embodiment 3
[0092] *Example 3. Preparation of compound 3-55
[0093]
[0094] Add 3-55-C (4.87g, 16.9mmol), A-1 (9.34, 16.9mmol), tetrakistriphenylphosphine palladium (0.7g, 1.08mmol), potassium carbonate (5.3g, 38.3mmol) in the reaction vessel, Toluene 500mL, ethanol 40mL and distilled water 40mL, stirred at 120°C for 3h. The reaction was stopped with distilled water and extracted with ethyl acetate. The organic layer was dried over MgSO4. The solvent was distilled off under reduced pressure and purified with a silica gel column to obtain compound 3-55 (5.81 g, 48%).
[0095] *Example 4. Preparation of compound 3-73
[0096]
[0097] Add 3-73-C (6.87g, 16.9mmol), 38.3mmol), 500mL of toluene, 40mL of ethanol and 40mL of distilled water into the reaction vessel, and stir at 120°C for 3h. The reaction was stopped with distilled water and extracted with ethyl acetate. The organic layer was dried over MgSO4. The solvent was distilled off under reduced pressure and purified with a ...
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