Nitrogen-containing compound, electronic component and electronic device
A nitrogen compound and carbon number technology, applied in the field of organic light-emitting materials, can solve the problems of performance degradation of light-emitting devices, decrease in luminous efficiency, increase in operating voltage, etc., and achieve the effects of improving electron blocking, reducing driving voltage and improving efficiency
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Synthetic example 1
[0172] Synthesis Example 1: Synthesis of Compound 2
[0173]
[0174] Intermediate 2 (10g, 17.4mmol), Intermediate A (7.18g, 17.4mmol), palladium acetate (0.0385g, 0.174mmol), 2-dicyclohexylphosphine-2',4',6'-triiso Propylbiphenyl (0.1653g, 0.348mmol) and potassium carbonate (3.56g, 25.8mmol) were added to toluene (80mL), absolute ethanol (40mL) and deionized water (20mL), heated to 80°C under nitrogen protection, Stir for 2h; then cool to room temperature, wash the reaction solution with water, add magnesium sulfate to dry, filter and remove the solvent from the filtrate under reduced pressure; use dichloromethane / n-heptane system to recrystallize and purify the crude product to obtain white solid compound 2 (6.0 g, yield 62.5%), mass spectrum m / z=786.33[M+H] + .
[0175] Synthesis Examples 2 to 19
[0176]Synthesis Example 2-18 refers to the synthesis method of Compound 2, and uses Intermediate X-II instead of Intermediate 2 to prepare the compounds in Table 3; Synthes...
Synthetic example 20
[0198]
[0199] Intermediate I-G (8.5g, 17.46mmol), Intermediate 25-I (5.61g, 17.46mmol), tris(dibenzylideneacetone)dipalladium (0.16g, 0.17mmol), 2-dicyclohexylphosphine- 2',6'-dimethoxybiphenyl (0.14g, 0.35mmol) and sodium tert-butoxide (2.52g, 26.18mmol) were added to toluene (40mL), heated to 108°C under nitrogen protection, and stirred for 3h; then After cooling to room temperature, the reaction solution was washed with water and dried by adding magnesium sulfate. After filtration, the filtrate was desolventized under reduced pressure; the crude product was purified by recrystallization using toluene system to obtain compound 320 (4.35 g, 41%) as a white solid. Mass spectrum: m / z=772.35[M+H] + .
[0200] Synthesis Examples 21 to 25
[0201] The compound in Table 5 was synthesized with reference to step (5) of Synthesis Example 15, except that Intermediate I-H and Intermediate I-I (Table 5 collectively referred to as "Intermediate a") were used instead of Intermediate...
Embodiment 1
[0206] Embodiment 1: blue organic electroluminescent device
[0207] The anode was prepared by the following process: the thickness was The ITO substrate (manufactured by Corning) was cut into a size of 40mm × 40mm × 0.7mm, and it was prepared into an experimental substrate with cathode, anode and insulating layer patterns by using a photolithography process, using ultraviolet ozone and O 2 :N 2 Plasma surface treatment was performed to increase the work function of the anode (experimental substrate) and to remove scum.
[0208] F4-TCNQ was vacuum evaporated on the experimental substrate (anode) to form a thickness of The hole injection layer (HIL), and NPB is evaporated on the hole injection layer to form a thickness of The first hole transport layer (HTL1).
[0209] Compound 2 is vacuum evaporated on the first hole transport layer to form a thickness of The second hole transport layer (HTL2).
[0210] On the second hole transport layer, α,β-ADN is used as the host,...
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