Organic electroluminescent compound based on benzo[b] naphtha[1,2-d]furan and light-emitting apparatus
A compound and luminescent technology, applied in organic chemistry, electrical solid devices, electrical components, etc., can solve the problems of high energy consumption, poor thermal stability, slow degradation, etc., and achieve high luminous purity, low driving voltage, good heat The effect of stability
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Embodiment 1
[0046] Synthesis of Compound 4
[0047]
[0048] Synthesis of Intermediate 4-1
[0049] In a three-necked flask, add N-(dibenzofuran-4-yl)-aniline (2.6g, 10mmol), p-bromoiodobenzene (2.8g, 10mmol), potassium carbonate (2.7g, 20mmol), phosphide Copper (0.3g), o-phenanthroline (0.3g) and o-xylene (30mL) were heated to reflux under nitrogen protection for 10 hours, cooled, and the solvent was removed. The crude product was purified by column chromatography to obtain 3.4g of the product. The yield was 83%.
[0050] Synthesis of Compound 4
[0051] In a three-necked flask, add intermediate 4-1 (0.5g, 1.2mmol), benzo[b]naphtho[1,2-d]furan-6-boronic acid (0.32g, 1.2mmol), potassium carbonate (0.33 g, 2.4mmol), tetrakistriphenylphosphine palladium (0.1g), tetrahydrofuran (15mL) and water (5mL), heated to reflux for 10 hours under nitrogen protection, cooled, extracted with dichloromethane, dried, concentrated, and the crude product was Purified by column chromatography to obtai...
Embodiment 2
[0053] Synthesis of compound 5
[0054]
[0055] Synthesis of Intermediate 5-1
[0056] The synthesis method is the same as that of intermediate 4-1, except that N-(9-phenylcarbazol-3-yl)-aniline is used instead of N-(dibenzofuran-4-yl)-aniline, and the yield is 68% .
[0057] Synthesis of compound 5
[0058] The synthesis method was the same as that of compound 4, except that intermediate 4-1 was replaced by intermediate 5-1, and the yield was 76%. MS: 626.31.
Embodiment 3
[0060] Synthesis of Compound 10
[0061]
[0062] Synthesis of intermediate 10-1
[0063] The synthesis of intermediate 10-1 was the same as that of intermediate 4-1 except that N-(9,9-dimethyl-9H-fluoren-2-yl)-1-naphthylamine was used instead of N-(dibenzofuran -4-yl)-aniline, yield 73%.
[0064] Synthesis of Compound 10
[0065] The synthesis method is the same as that of compound 4, except that intermediate 4-1 is replaced by intermediate 10-1, and the yield is 83%. MS: 627.73.
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