Organic compound with fluorene as main body and organic electroluminescent device
An organic compound and host technology, applied in the field of organic compounds and organic electroluminescent devices, can solve problems such as disparity, avoid aggregation, reduce efficiency roll-off, and improve hole injection/transport performance.
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[0141] Example 1: Synthesis of organic compound (6):
[0142] synthetic route:
[0143]
[0144] In a 250ml three-necked flask, under the protection of nitrogen, add 0.01mol 9,9'-diphenyl-3-bromofluorene, 0.012mol intermediate A1, 150ml toluene, stir and mix, then add 0.03mol sodium tert-butoxide, 5× 10 -5 molPd 2 (dba) 3 , 5×10 - 5 mol of tri-tert-butyl phosphine, heated to 105°C, refluxed for 24 hours, sampling point plate showed that no bromine was left, the reaction was complete; naturally cooled to room temperature (15-30°C), filtered, and the filtrate was subjected to vacuum rotary evaporation ( -0.09MPa, 85°C), pass through a neutral silica gel column to obtain the target product with an HPLC purity of 99.2% and a yield of 74.6%;
[0145] Elemental analysis structure (molecular formula C 46 H 33 NO): Theoretical value C, 89.73; H, 5.40; N, 2.27; O, 2.60; Test value: C, 89.72; H, 5.41; N, 2.25; O, 2.62.
[0146] HPLC-MS: The molecular weight of the material is 615.26, and the m...
Example Embodiment
[0147] Example 2: Synthesis of organic compound (7):
[0148] synthetic route:
[0149]
[0150] In a 250ml three-necked flask, under the protection of nitrogen, add 0.01mol 9,9'-diphenyl-3-bromofluorene, 0.012mol intermediate A2, 150ml toluene, stir and mix, then add 0.03mol sodium tert-butoxide, 5× 10 -5 molPd 2 (dba) 3 , 5×10 - 5 mol tri-tert-butyl phosphine, heated to 105°C, refluxed for 24 hours, sampling point plate showed that no bromine was left, the reaction was complete; naturally cooled to room temperature, filtered, and the filtrate was subjected to vacuum rotary evaporation (-0.09MPa, 85°C) ), pass through a neutral silica gel column to obtain the target product with an HPLC purity of 99.3% and a yield of 75.5%;
[0151] Elemental analysis structure (molecular formula C 46 H 33 NO): Theoretical value C, 89.73; H, 5.40; N, 2.27; O, 2.60; Test value: C, 89.71; H, 5.42; N, 2.26; O, 2.61.
[0152] HPLC-MS: The molecular weight of the material is 615.26, and the measured mole...
Example Embodiment
[0153] Example 3: Synthesis of organic compound (11):
[0154] synthetic route:
[0155]
[0156] In a 250ml three-necked flask, under the protection of nitrogen, add 0.01mol 9,9'-diphenyl-3-bromofluorene, 0.012mol intermediate A3, 150ml toluene, stir and mix, then add 0.03mol sodium tert-butoxide, 5× 10 -5 molPd 2 (dba) 3 , 5×10 - 5 mol tri-tert-butyl phosphine, heated to 105°C, refluxed for 24 hours, sampling point plate showed that no bromine was left, the reaction was complete; naturally cooled to room temperature, filtered, and the filtrate was subjected to vacuum rotary evaporation (-0.09MPa, 85°C) ), pass through a neutral silica gel column to obtain the target product with an HPLC purity of 99.1% and a yield of 75.1%;
[0157] Elemental analysis structure (molecular formula C 46 H 33 NO): Theoretical value C, 89.73; H, 5.40; N, 2.27; O, 2.60; Test value: C, 89.71; H, 5.41; N, 2.26; O, 2.62.
[0158] HPLC-MS: The molecular weight of the material is 615.26, and the measured mol...
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