A kind of compound with triarylamine as the core and its application
A compound, triarylamine technology, applied in the application field of organic electroluminescent devices, can solve the problems of different performances, achieve strong hole transport ability, high hole mobility, improve current efficiency and lifespan
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Embodiment 1
[0051] Synthesis of Intermediate M
[0052]
[0053] Weigh raw material A and raw material B and dissolve them with toluene, then add Pd 2 (dba) 3 , triphenylphosphine and potassium tert-butoxide; under an inert atmosphere, react the mixed solution of the above reactants at a reaction temperature of 90-110°C for 10-24 hours, cool and filter the reaction solution, spin the filtrate, and pass it through a silica gel column , to obtain intermediate M; the consumption of said toluene is to use 30-50mL toluene per gram of raw material A; the molar ratio of said raw material B to raw material A is 1:1.0-1.5; said Pd 2 (dba) 3 The molar ratio to raw material A is 0.006-0.02:1, the molar ratio of potassium tert-butoxide to raw material A is 2.0-3.0:1; the molar ratio of triphenylphosphine to raw material A is 2.0-3.0:1 ;
[0054] Take the synthesis of intermediate M-1 as an example:
[0055]
[0056] In a 250ml three-neck flask, under an atmosphere of nitrogen gas, add 0.01...
Embodiment 2
[0061] Embodiment 2: the synthesis of compound 1:
[0062]
[0063] In a 250ml three-neck flask, under a nitrogen atmosphere, add 0.01mol of intermediate M-1, 0.012mol of raw material C-1, 0.03mol of potassium tert-butoxide, 1×10 -4 molPd 2 (dba) 3 , 1×10 -4 mol tri-tert-butylphosphine, 150ml toluene, heated and refluxed for 12 hours, took a sample point plate, and the reaction was complete; naturally cooled, filtered, and the filtrate was rotary evaporated, and passed through a silica gel column to obtain compound 1; elemental analysis structure (molecular formula C 51 h 39 N): theoretical value C, 91.99; H, 5.90; N, 2.10; test value: C, 91.99; H, 5.90; N, 2.11. ESI-MS (m / z) (M+): The theoretical value is 665.31, and the measured value is 665.86.
Embodiment 3
[0064] Embodiment 3: the synthesis of compound 5:
[0065]
[0066] The preparation method of compound 5 is the same as Example 2, and the difference is that intermediate M-1 is replaced by intermediate M-2, and raw material C-2 is replaced by raw material C-1; Elemental analysis structure (molecular formula C 48 h 33 NO): theoretical value C, 90.11; H, 5.20; N, 2.19; found value: C, 90.12; H, 5.20; N, 2.19. ESI-MS (m / z) (M+): theoretical value 639.26, found value 639.64.
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