Spiro-xanthene fluorene-cored compound and application thereof to organic electroluminescent devices
A compound, xanthene technology, applied in the application field of organic electroluminescent devices, can solve problems such as disparity
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Embodiment 1
[0109] The synthesis of embodiment 1 compound 4
[0110]
[0111] In a 250ml three-neck flask, under the protection of nitrogen, add 0.01mol raw material A1, 0.012mol raw material B1, 150ml toluene and stir to mix, then add 0.03mol sodium tert-butoxide, 5×10 -5 molPd 2 (dba) 3 , 5×10 -5 mol of tri-tert-butylphosphine, heated to 105°C, refluxed for 24 hours, sampling plate, showed no remaining bromide, the reaction was complete; naturally cooled to room temperature, filtered, and the filtrate was rotary evaporated under reduced pressure (-0.09MPa, 85°C ), through a neutral silica gel column, to obtain the target product, HPLC purity 99.3%, yield 65.7%;
[0112] Elemental analysis structure (molecular formula C 40 h 29 NO): Theoretical C, 89.02; H, 5.42; N, 2.60; O, 2.96; Tested: C, 89.05; H, 5.41; N, 2.58; ESI-MS(m / z)(M + ): The theoretical value is 539.22, and the measured value is 539.31.
Embodiment 2
[0113] The synthesis of embodiment 2 compound 15
[0114]
[0115] In a 250ml three-necked flask, under the protection of nitrogen, add 0.01mol raw material A2, 0.012mol raw material B2, 150ml toluene and stir to mix, then add 0.03mol sodium tert-butoxide, 5×10 -5 molPd 2 (dba) 3 , 5×10 -5 mol of tri-tert-butylphosphine, heated to 105°C, refluxed for 24 hours, sampling plate, showed no remaining bromide, the reaction was complete; naturally cooled to room temperature, filtered, and the filtrate was rotary evaporated under reduced pressure (-0.09MPa, 85°C ), through a neutral silica gel column, to obtain the target product, HPLC purity 99.1%, yield 66.7%;
[0116] Elemental analysis structure (molecular formula C 40 h 29NS): theoretical value C, 83.90; H, 4.38; N, 2.64; O, 3.02; S, 6.05; test value: C, 83.91; ESI-MS(m / z)(M + ): The theoretical value is 529.15, and the measured value is 529.21.
Embodiment 3
[0117] The synthesis of embodiment 3 compound 20
[0118]
[0119] In a 250ml three-neck flask, under the protection of nitrogen, add 0.01mol raw material A3, 0.012mol raw material B3, 150ml toluene and stir to mix, then add 0.03mol sodium tert-butoxide, 5×10 -5 molPd 2 (dba) 3 , 5×10 -5 mol of tri-tert-butylphosphine, heated to 105°C, refluxed for 24 hours, sampling plate, showed no remaining bromide, the reaction was complete; naturally cooled to room temperature, filtered, and the filtrate was rotary evaporated under reduced pressure (-0.09MPa, 85°C ), through a neutral silica gel column, to obtain the target product, HPLC purity 98.8%, yield 65.6%;
[0120] Elemental analysis structure (molecular formula C 46 h 31 NO 2 ): theoretical value C, 87.73; H, 4.96; N, 2.22; O, 5.08; test value: C, 87.75; H, 4.97; N, 2.21; ESI-MS(m / z)(M + ): The theoretical value is 629.24, and the measured value is 629.32.
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