A kind of dibenzofuran host material and its preparation method and application
A technology of dibenzofuran and host materials, which is applied in the direction of luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., and can solve the problems of long lifetime of excited state excitons, concentration quenching effect of luminescent materials, lack of etc.
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Embodiment 1
[0065] Synthesis of (Compound I-6-2)
[0066] The synthetic route is as follows:
[0067]
[0068] Synthesis of compound I-6-2
[0069] A 500 ml three-necked flask was equipped with a magnetic stirrer. After nitrogen replacement, 19.93 g (0.188 mol) of sodium carbonate, 28.91 g (4-(diphenylamino)phenyl) boric acid (99% purity, 0.1 mol) and 100 ml of toluene were sequentially added. After nitrogen replacement again, 0.23 g of bistriphenylphosphine palladium dichloride was sequentially added. After the addition, the temperature was raised to 80°C. Start to drop a solution consisting of 39.17 g of compound A (purity 99%, 0.15 mol) and 100 ml of toluene, and control the temperature at 80-100°C. Cool down to room temperature, add 100m deionized water for hydrolysis, stir for 10 minutes, filter, and boil the filter cake several times with DMF to obtain 38.29g of white product with a purity of 99% and a yield of 80%.
[0070] Product MS (m / e): 425.52; Elemental analysis (C ...
Embodiment 2
[0072] Synthesis of (Compound I-8-2)
[0073] The synthetic route is as follows:
[0074]
[0075] Synthesis of compound I-8-2
[0076] 500ml three-neck flask, equipped with magnetic stirring, after nitrogen replacement, add 19.93g (0.188mol) of sodium carbonate, (4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl ) boric acid 35.3g (purity 99%, 0.1mol) and toluene 100ml. After nitrogen replacement again, 0.23 g of bistriphenylphosphine palladium dichloride was sequentially added. After the addition, the temperature was raised to 80°C. Start to drop a solution consisting of 39.17 g of compound A (purity 99%, 0.15 mol) and 100 ml of toluene, and control the temperature at 80-100°C. Cool down to room temperature, add 100m deionized water for hydrolysis, stir for 10 minutes, filter, and boil the filter cake several times with DMF to obtain 44.55g of white product with a purity of 99% and a yield of 91%.
[0077] Product MS (m / e): 489.57; Elemental analysis (C 33 h 23 N 3 O): ...
Embodiment 3
[0079] Synthesis of (Compound I-4-2)
[0080] The synthetic route is as follows:
[0081]
[0082] Synthesis of compound I-4-2
[0083] 500 ml three-necked flask equipped with a magnetic stirrer, after nitrogen replacement, 19.93 g (0.188 mol) of sodium carbonate, 21.10 g (purity 99%, 0.1 mol) of (9H-carbazol-3-yl) boric acid and 100 ml of toluene were added successively. After nitrogen replacement again, 0.23 g of bistriphenylphosphine palladium dichloride was sequentially added. After the addition, the temperature was raised to 80°C. Start to drop a solution consisting of 39.17 g of compound A (purity 99%, 0.15 mol) and 100 ml of toluene, and control the temperature at 75-80°C. Cool down to room temperature, add 100m deionized water for hydrolysis, stir for 10 minutes, filter, and boil the filter cake several times with DMF to obtain 37.69g of white product with a purity of 99% and a yield of 89%.
[0084] Product MS (m / e): 423.50; Elemental analysis (C 31 h 21 NO...
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