Boron-containing six-membered heterocyclic derivative and application thereof to organic light-emitting device
A technology of six-membered heterocycles and derivatives, which can be used in electrical solid devices, compounds containing elements of Group 3/13 of the periodic table, electrical components, etc. Excitons utilization and high fluorescence radiation efficiency to achieve the effect of good optoelectronic performance
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Embodiment 1
[0056] The synthesis of embodiment 1 compound 5
[0057] The synthetic steps of compound are as follows:
[0058]
[0059] In a 150ml four-neck flask, add 0.01mol of A1 and 50ml of tetrahydrofuran, protect it with nitrogen, cool to -78 degrees Celsius, and then slowly drop in 0.02mol of n-butyl lithium cyclohexane solution. After the drop is completed, stir for 3 hours. Raise the temperature to -10 degrees Celsius, drop in 0.01mol dimethyl tin dichloride tetrahydrofuran solution, after the dropwise addition, keep the temperature for reaction for 1 hour, then warm up to room temperature, remove the tetrahydrofuran by rotary evaporation, and then rinse twice with ethanol to obtain Pale yellow solid B1, purity 98.2%, yield 90%. HRMS(m / z): [M+H] + , the theoretical value is 417.14, and the measured value is 417.11.
[0060] Add 50ml of toluene and 0.01mol B1 to a 150ml three-necked flask, protect it with nitrogen, cool down to -78 degrees Celsius, and then slowly drop in a t...
Embodiment 2
[0063] The synthesis of embodiment 2 compound 10
[0064] The synthetic steps of compound are as follows:
[0065]
[0066] 150ml four-neck flask, add 0.01mol of A2 and 50ml of tetrahydrofuran, nitrogen protection, cool to -78 degrees Celsius, then slowly drop into 0.02mol of n-butyllithium cyclohexane solution, after the completion of the drop, stir the reaction for 3 hours, Raise the temperature to -10 degrees Celsius, drop in 0.01mol dimethyl tin dichloride tetrahydrofuran solution, after the dropwise addition, keep the temperature for 1 hour reaction, then warm up to room temperature, remove the tetrahydrofuran by rotary evaporation, and then rinse twice with ethanol to obtain Pale yellow solid B2 with a purity of 98.4% and a yield of 87.5%. HRMS(m / z): [M+H] + , the theoretical value is 467.20, and the measured value is 467.15.
[0067] Add 50ml of toluene and 0.01mol B2 to a 150ml three-necked flask, protect it with nitrogen, cool down to -78 degrees Celsius, and th...
Embodiment 3
[0070] The synthesis of embodiment 3 compound 20
[0071] The synthetic steps of compound are as follows:
[0072]
[0073] Add 0.01mol of A3 and 50ml of tetrahydrofuran into a 150ml four-necked flask, protect it with nitrogen, cool to -78 degrees Celsius, then slowly drop in 0.02mol of n-butyllithium cyclohexane solution, and stir for 3 hours to react. Raise the temperature to -10 degrees Celsius, drop in 0.01mol dimethyl tin dichloride tetrahydrofuran solution, after the dropwise addition, keep the temperature for 1 hour reaction, then warm up to room temperature, remove the tetrahydrofuran by rotary evaporation, and then rinse twice with ethanol to obtain Pale yellow solid B3 with a purity of 97.6% and a yield of 87.5%. HRMS(m / z): [M+H] + , the theoretical value is 391.06, and the measured value is 391.12.
[0074]Add 50ml of toluene and 0.01mol B3 into a 150ml three-necked flask, protect it with nitrogen, cool down to -78 degrees Celsius, and then slowly drop in a to...
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