Luminescent material and application thereof
A selected and unreplaced technology, applied in the application field of organic electroluminescent devices, can solve the problems of electron and hole mismatch, shortened life, and efficiency roll-off in the light-emitting layer, and achieve high luminous efficiency and favorable charge balanced effect
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Synthetic example 1
[0052] Synthesis of Compound A1
[0053]
[0054] In the reaction flask, add 2,4-dichloro-6-(3,5-diphenyl)phenyltriazine 37g (100mmol), 2-dibenzofuran boronic acid 22g (110mmol), tetrakis(triphenylphosphine Palladium) 0.9g (0.785mmol, 0.5%), toluene 1500ml, ethanol 1000ml, potassium carbonate 43.3g (314mmol) / water 1000ml, react at 80°C for 3.5h. After the reaction is complete, stop the reaction. After cooling to room temperature and filtering, the obtained solid was purified by recrystallization from toluene to obtain white powder M1-1.
[0055] In the reaction flask, add 18.8g (50mmol) of M1-1, 16.5g (60mmol) of carbazole, 21g (150mmol) of potassium carbonate / 200ml of DMF, and react at 150°C for 12h. After the reaction is complete, stop the reaction. Water was added to the reaction solution, and a white solid was precipitated. The obtained solid was purified by recrystallization from toluene to obtain A1.
[0056] 1 H NMR (CDCl3, 400MHz) δ8.72–8.48(m,4H),8.25(s,1H),8....
Synthetic example 2
[0058] Synthesis of compound A6
[0059]
[0060] In the reaction flask, add 2,4-dichloro-6-(3,5-diphenyl)phenyltriazine 37g (100mmol), 2-dibenzothiophene boronic acid 24g (110mmol), tetrakis(triphenylphosphine Palladium) 0.9g (0.785mmol, 0.5%), toluene 1500ml, ethanol 1000ml, potassium carbonate 43.3g (314mmol) / water 1000ml, react at 80°C for 3.5h. After the reaction is complete, stop the reaction. After cooling to room temperature and filtering, the obtained solid was purified by recrystallization from toluene to obtain white powder M2-1.
[0061] In the reaction flask, add 20g (50mmol) of M2-1, 16.5g (60mmol) of carbazole, 21g (150mmol) of potassium carbonate / 200ml of DMF, and react at 150°C for 12h. After the reaction is complete, stop the reaction. Water was added to the reaction solution, and a white solid was precipitated. The obtained solid was purified by recrystallization from toluene to obtain A6.
[0062] 1 H NMR(CDCl3,400MHz)δ8.83(s,1H),8.53(d,J=12.0Hz,4H)...
Synthetic example 3
[0064] Synthesis of Compound A15
[0065]
[0066] In the reaction flask, add 2,4-dichloro-6-(3-phenyl-5-(3-phenylcarbazole))phenyltriazine 54.2g (100mmol), 2-dibenzofuran boronic acid 22g ( 110mmol), tetrakis(triphenylphosphine palladium) 0.9g (0.785mmol, 0.5%), toluene 1500ml, ethanol 1000ml, potassium carbonate 43.3g (314mmol) / water 1000ml, react at 80°C for 3.5h. After the reaction is complete, stop the reaction. After cooling to room temperature and filtering, the obtained solid was purified by recrystallization from toluene to obtain white powder M3-1.
[0067] In the reaction flask, add M3-1 33.7g (50mmol), 3-(2-naphthyl)carbazole 29g (60mmol), potassium carbonate 21g (150mmol) / DMF200ml, and react at 150°C for 12h. After the reaction is complete, stop the reaction. Water was added to the reaction solution, and a white solid was precipitated. The obtained solid was purified by recrystallization from toluene to obtain A15.
[0068] 1 H NMR (CDCl3, 400MHz) δ8.79(s,...
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