Organic luminescent compound, preparation method thereof, and organic electroluminescent device containing compound

[0081] Example 1: Preparation of compound 1

[0082]

[0083] After adding 4-bromo-9-phenylcarbazole (60 mmol) and 200 mL of tetrahydrofuran to the reaction vessel, the vessel was cooled to -78°C under a nitrogen atmosphere. Then n-butyllithium (2.5M, 60 mmol) was slowly added dropwise to the mixture. After stirring the mixture at -78°C for 30 minutes, it was stirred at room temperature for 3 hours, and cooled to -78°C. Thereafter, fluorenone (60 mmol) dissolved in 200 mL of tetrahydrofuran was slowly added dropwise to the mixture. After the addition, the reaction temperature was slowly warmed to room temperature, and the mixture was stirred for 16 hours. Next, an aqueous ammonium chloride solution was added to the reaction solution to complete the reaction, and the reaction solution was extracted with ethyl acetate. Next, the extracted organic layer was dried using magnesium sulfate, and the solvent was removed using a rotary evaporator. The remaining material was purified by c

[0085] Example 2: Preparation of compound 7

[0086]

[0087] Compound 7 was prepared according to the method of Example 1 (yield=75% mass spectrum value: 818.0). The difference from Example 1 is that Intermediate 1-2 is used instead of Intermediate 1-1, and Intermediate 2-7 is used instead of Intermediate 2-1.

[0088] Example 3: Preparation of compound 13

[0089]

[0090] The compound 13 was prepared according to the method of Example 2 (yield=78% mass spectrum value: 776.15.0). The difference from Example 2 is that Intermediate 2-13 is used instead of Intermediate 2-7.