Compound with triarylamine structure as core and preparation method thereof
A compound, triarylamine technology, applied in the field of organic electroluminescent materials, can solve problems such as disparity, and achieve the effects of improving thermal stability, reducing planarity, and optimizing device structure
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[0062] Embodiment 1: the synthesis of compound 1
[0063]
[0064] (1) In a 250ml three-neck flask, under the protection of nitrogen, add 0.01mol reactant A-1, 0.01mol reactant B-1, 150ml toluene and stir to mix, then add 5×10 -5 mol Pd 2 (dba) 3 , 5×10 -5 mol P(t-Bu) 3 , 0.03mol sodium tert-butoxide, heated to 105°C, refluxed for 24 hours, sampling plate, showed no bromide remaining, the reaction was complete; naturally cooled to room temperature, filtered, the filtrate was rotary evaporated to no fraction, passed through a neutral silica gel column , the intermediate product M-1 was obtained, the HPLC purity was 99.66%, and the yield was 86.8%. HRMS(EI): The molecular weight of the material is 410.1539, and the measured molecular weight is 410.1529;
[0065] (2) In a 250ml three-neck flask, under the protection of nitrogen, add 0.01mol of the intermediate product M-1 obtained in step (1) and 0.01mol of reactant C, and stir and mix with 150ml of toluene, then add 5×10...
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