Compound for capping layer and organic light-emitting device comprising same
A compound and covering layer technology, applied in organic chemistry, electrical solid devices, semiconductor devices, etc., can solve problems such as shortened lifespan, achieve the effects of preventing intermolecular recrystallization, achieving color purity, and improving stability
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preparation example 1
[0178] Preparation Example 1: Synthesis of IM1
[0179] The synthesis method of the following IM1 is as follows.
[0180]
[0181] In a round bottom flask, dissolve 30.0 g of (4-(naphthalen-1-yl)phenyl)boronic acid and 26.3 g of 1-bromo-4-iodobenzene in 600 ml of 1,4-bis Alkanes, and put in 160ml of K 2 CO 3 (2M) and 3.7g of Pd(PPh 3 ) 4 Thereafter, reflux stirring was performed. The reaction was confirmed by thin layer chromatography (T LC), and after adding water, the reaction was terminated. The organic layer was extracted with methylcellulose (MC), filtered under reduced pressure, and then column purified to obtain 24.0 g of intermediate I M1 (63% yield).
preparation example 2
[0182] Preparation Example 2: Synthesis of IM2
[0183] In the same manner as above IM1, as shown in Table 1 below, the starting materials were changed to synthesize the following IM2.
[0184]
[0185] Table 1
[0186]
[0187] Synthesis of Compounds for Overlays
Synthetic example 1
[0188] Synthesis Example 1: Synthesis of Compound 20
[0189]
[0190] In a round bottom flask, add 3.0 g of IM1, bis([1,1':4',1"-terphenyl]-4-yl)amine (di([1,1':4',1"-terphenyl ]-4-yl)amine)) 4.4g, t-BuONa 1.2g, Pd 2 (d ba) 3 0.3g, (t-Bu) 3 0.4 ml of P was dissolved in 120 ml of toluene, and stirred under reflux. The reaction was confirmed by thin layer chromatography, and after adding water, the reaction was terminated. The organic layer was extracted with methylcellulose, filtered under reduced pressure, and then recrystallized to obtain 3.7 g of Compound 20 (59% yield).
[0191] m / z: 751.32 (100.0%), 752.33 (63.2%), 753.33 (19.6%), 754.33 (4.0%)
[0192] Glass transition temperature (Tg; TA instruments (TA instruments), DSC-2500): 130°C
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