Compound, display panel and display device
A compound and unsubstituted technology, applied in the field of organic electroluminescence, can solve the problem of less materials, achieve high glass transition temperature, easy to obtain, and improve luminous efficiency
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preparation example 1
[0133] Synthesis of compound P001:
[0134] Synthesis of Intermediate X3:
[0135]
[0136] Under nitrogen atmosphere, X1 (21mmol), X2 (10mmol) and Pd(PPh 3 ) 4 (0.5 mmol) was added to 250 mL of anhydrous toluene, after deoxygenation for 10 min, the temperature was raised to 120° C., and the reaction was carried out for 24 h. After the reaction is completed, cool to room temperature, filter with diatomaceous earth, collect the filtrate and add dichloromethane (DCM), H 2 O was extracted, and the collected organic phase was washed with anhydrous Na 2 SO 4 Dry, collect the filtrate by suction filtration, spin off the solvent, and recrystallize the crude product to obtain the intermediate product X3 (8.5 mmol, 85%), which is verified by mass spectrometry and put into the next step;
[0137] Intermediate X3: LC-MS: m / z: Calculated: C 49 h 32 B 2 o 3 : 690.4, measured value: 689.9.
[0138] Synthesis of Intermediate X4:
[0139]
[0140] The X3 intermediate (10 mmol) ...
preparation example 2
[0155] Synthetic compound P008
[0156]
[0157] Under a nitrogen atmosphere, add 100mL of 1,4-dioxane solvent into a 250mL reaction flask, and then add K 2 CO 3 (12.5mmol) solution, intermediate reactants X5 (5mol), X7 (11mmol), and Pd (PPh 3 ) 4 (0.25 mmol), heated to 120°C, and reacted overnight. After the reaction is completed, cool to room temperature, add DCM, H 2 O was extracted, and the collected organic phase was washed with anhydrous Na 2 SO 4 After drying, the filtrate was collected by suction filtration, the solvent was spun off and purified by column chromatography to obtain compound P008 (4.2 mmol, 84%).
[0158] LC-MS: m / z: Calculated: C 85 h 52 B 2 N 2 o 2 : 1155.0, measured value: 1154.5.
[0159] 1 H NMR (400MHz, CDCl 3 )δ=8.26-8.23(m, 2H), 8.12-8.04(m, 4H), 7.79-7.65(m, 16H), 7.61-7.49(m, 14H), 7.46-7.29(m, 8H), 7.25- 7.13 (m, 4H), 7.10-6.89 (m, 4H).
[0160] Compound elemental analysis results: Calculated value: C 85 h 52 B 2 N 2 o 2...
preparation example 3
[0162] Synthetic compound P013
[0163]
[0164] Under nitrogen atmosphere, in 100mL of anhydrous toluene solvent, add intermediate reactants X5 (1mol), X8 (2.2mmol), sodium tert-butoxide (2.5mmol) and Pd in sequence 2 (dba) 3 (0.05mmol), S-Phos (0.15mmol), heated to 110°C, and reacted overnight. After the reaction is completed, cool to room temperature, add DCM, H 2 O was extracted, and the collected organic phase was washed with anhydrous Na 2 SO 4 After drying, the filtrate was collected by suction filtration, the solvent was spun off and purified by column chromatography to obtain compound P013 (0.8 mmol, 80%).
[0165] LC-MS: m / z: Calculated: C 79 h 56 B 2 N 2 o 2 :1086.9, measured value: 1086.4.
[0166] 1 H NMR (400MHz, CDCl 3 ):δ=8.25(d,2H),8.10-8.01(m,4H),7.78-7.60(m,12H),7.59-7.47(m,12H),7.41-7.27(m,6H),7.25-7.10 (m, 4H), 7.08-6.89 (m, 4H), 1.68-1.65 (m, 12H).
[0167] Compound elemental analysis results: Calculated value: C 79 h 56 B 2 N 2 o ...
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