Organic electronic transmission and/or positive hole countercheck material, and synthesizing method and purpose thereof
A hole-blocking material and organic electron technology, applied in chemical instruments and methods, light-emitting materials, organic chemistry, etc., can solve problems such as further improvement of stability, poor device performance, and changes in luminescent properties.
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Embodiment 11
[0058] Embodiment 1.1, the preparation of 4-bis (4-(2-phenyl-6-p-tolyl-3-trifluoromethylpyridine)) benzene (BPTTPB)
[0059]
[0060] The first step: take 2-bromo-1-(4-trifluoromethylphenyl)ethanone and pyridine with a molar ratio of 1 as raw materials, stir at room temperature for 11 hours, filter, and wash with a large amount of water to obtain the corresponding pyridine Bromide, the yield is about 90%;
[0061] The second step: under the condition of nitrogen protection, add the product of the first step, terephthalaldehyde and p-methylacetophenone (the molar ratio is 2:1:2) into the three-necked bottle, and then add an appropriate amount of glacial acetic acid and ammonium acetate, stirred vigorously, kept the temperature at 120°C to 140°C, refluxed for 24 hours, filtered out the product, and subjected to column chromatography or recrystallization to obtain the high-purity target product with a yield of about 50%.
[0062] m / z: 700.23 (100.0%), 701.23 (48.3%), 702.24 (...
Embodiment 21
[0072] Embodiment 2.1, the preparation of 4-bis(4-(6-(4-biphenyl)-2-phenyl-3-trifluoromethylpyridine))benzene (BBPTPB)
[0073]
[0074] The first step: take 2-bromo-1-(4-trifluoromethylphenyl)ethanone with a molar ratio of 1, and pyridine as raw materials, stir at room temperature for 12 hours, filter, and wash with a large amount of water to obtain the corresponding pyridine Bromine salt, the yield is about 90%;
[0075] The second step: under the condition of nitrogen protection, add the product of the first step, terephthalaldehyde and p-phenylacetophenone (the molar ratio is 2:1:2) into the three-necked bottle, and then add an appropriate amount of glacial acetic acid and ammonium acetate, stirred vigorously, kept the temperature at 120°C to 140°C, refluxed for 24 hours, filtered out the product, and subjected to column chromatography or recrystallization to obtain the high-purity target product with a yield of about 55%.
[0076] m / z: 824.26 (100.0%), 825.27 (58.8%),...
Embodiment 34
[0077] Embodiment 3.4,4'-(1,4-phenylene) bis(2-phenyl-6-p-tolylpyridinecarbonitrile) (PBPTNN) preparation
[0078]
[0079] The first step: get 4-(2-bromoacetyl) benzonitrile with a molar ratio of 1, pyridine is a raw material, stir at room temperature for 10 hours, filter, and wash with a large amount of water to obtain the corresponding pyridinium bromide, with a yield of about 85%;
[0080] The second step: under the condition of nitrogen protection, add the product of the first step, terephthalaldehyde and p-methylacetophenone (the molar ratio is 2:1:2) into the three-necked bottle, and then add an appropriate amount of glacial acetic acid and ammonium acetate, stirred vigorously, kept the temperature at 120°C to 140°C, refluxed for 24 hours, filtered out the product, and subjected to column chromatography or recrystallization to obtain the high-purity target product with a yield of about 60%.
[0081] m / z: 614.25 (100.0%), 615.25 (47.9%), 616.25 (11.8%), 617.26 (1.7%), ...
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