Compound, electron transport material, display panel and display device
An electron transport material and display panel technology, applied in the field of OLED, can solve the problems of rising drift voltage, changing electron injection and mobility characteristics, small molecular weight, etc.
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[0042] According to one embodiment of the compound of the present invention, Ar is selected from any one of the following groups:
[0043]
[0044] *Indicates possible connection positions.
[0045] According to one embodiment of the compound of the present invention, Ar is selected from any one of the following groups:
[0046]
[0047] R 7 Selected from hydrogen atom, C1-C6 alkyl, C6-C18 aryl, C4-C20 heteroaryl;
[0048] *Indicates possible connection positions.
[0049] According to one embodiment of the compound of the present invention, Ar is selected from any one of the following groups:
[0050]
[0051] *Indicates possible connection positions.
[0052] According to one embodiment of the compound of the present invention, the compound is selected from one of the following compounds:
[0053]
[0054]
[0055]
[0056]
[0057]
[0058]
[0059]
[0060]
[0061]
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[0063]
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[0065]
[0066] The present ...
Embodiment 1
[0075] Synthesis of compound M004
[0076]
[0077] X002 (1.15 mmol) was dissolved in 40 mL of anhydrous tetrahydrofuran (THF) at room temperature under nitrogen atmosphere. NaH (1.4 mmol) was repeatedly washed with n-hexane, and then added to the above solution. After stirring for 1 h, X001 (1.1 mmol) was added and stirred overnight at room temperature. The reaction was quenched by adding methanol and water. Extract with dichloromethane, collect the organic phase, and wash with anhydrous Na 2 SO 4 Dry processing. The dried solution was filtered, and the solvent was removed by a rotary evaporator to obtain a crude product. The crude product was purified by silica gel chromatography using chloroform / n-hexane as eluent to obtain intermediate X003 (0.94 mmol, yield 85%).
[0078] MALDI-TOF MS: C 15 h 8 Cl 2 N 4 : m / z calculated: 314.0; tested: 314.2.
[0079]
[0080] X004 (1.15 mmol) was dissolved in 45 mL of anhydrous THF at room temperature under nitrogen atmo...
Embodiment 2
[0087] Synthesis of Compound M037
[0088]
[0089] Under nitrogen protection, weigh compound X005 (1.3mmol), X007 (1.45mmol), [Pd 2 (dba) 3 ]·CHCl 3 (0.06mmol) and HP(tBu) 3 ·BF 4 (0.12mmol), was added to a 250mL two-necked flask. Inject 60mL of toluene into the two-necked flask (pass N in advance 2 15min to remove oxygen), and then add 6mL concentration of 1M K 2 CO 3 Aqueous solution (pass N in advance 2 15min to remove oxygen), and stirred overnight at room temperature. After the reaction was completed, 20 mL of deionized water was added, followed by a few drops of 2M HCl. Extract with dichloromethane, collect the organic phase, and wash with anhydrous Na 2 SO 4 Dry processing. The dried solution was filtered, and the solvent was removed by a rotary evaporator to obtain a crude product. The crude product was purified by silica gel column chromatography, and the final purification afforded solid M037 (1.03 mmol, 79%).
[0090] MALDI-TOF MS: C 37 h 21 N ...
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