Novel compound and organic electroluminescent device including the same
A technology of organic light-emitting devices and compounds, applied in the field of novel compounds and organic light-emitting devices containing them, can solve the problems of high driving voltage, short life, low efficiency, etc., and achieve the effects of long-life devices, high Tg, and high color purity
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preparation example 1
[0122] Synthesis of OP
[0123]
[0124] In order to synthesize the target compound, the synthesis was carried out through the above steps to prepare the OP.
[0125] The following synthesis method of OP1 is as follows.
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[0127] In a round bottom flask, 10.0 g of 4-bromo-9,9-diphenyl-9H-fluorene (4-bromo-9,9-diphenyl-9H-fluorene), 2.6 g of aniline, 3.6 g of t-BuONa, 0.9 g of Pd 2 (dba) 3 , 1.1ml of (t-Bu) 3 P was dissolved in 130 ml of toluene, and then stirred while refluxing. The reaction was confirmed by thin layer chromatography (TLC), and after adding water, the reaction was terminated. The organic layer was extracted with methylcellulose (MC), filtered under reduced pressure, and then column purification and recrystallization were performed to obtain 7.01 g (yield 68%) of OP1.
[0128] The following OP2 to OP9 were synthesized by changing the starting materials in the same manner as above OP1.
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Synthetic example 1
[0132] Synthesis Example 1: Synthesis of Compound 1
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[0134] In a round bottom flask, 5.0 g of 2-bromo-9-phenyl-9H-carbazole (2-bromo-9-phenyl-9H-carbazole), 7.0 g of OP1, 2.2 g of t-BuONa, 0.6 Pd of g 2 (dba) 3 , 0.7ml of (t-Bu) 3 P was dissolved in 120 ml of toluene, and stirred while refluxing thereafter. The reaction was confirmed by thin layer chromatography, and after adding water, the reaction was terminated. The organic layer was extracted with methylcellulose, and filtered under reduced pressure, followed by column purification and recrystallization to obtain 7.07 g (yield 70%) of Compound 1.
[0135] m / z: 650.27 (100.0%), 651.28 (53.4%), 652.28 (14.0%), 653.28 (2.4%)
Synthetic example 2
[0136] Synthesis Example 2: Synthesis of Compound 2
[0137]
[0138] Using OP2 instead of OP1, compound 2 was synthesized in the same way as compound 1 (yield 68%).
[0139] m / z: 726.30 (100.0%), 727.31 (59.9%), 728.31 (17.6%), 729.31 (3.4%)
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