Indenocarbazole compound and organic electroluminescent element
An electroluminescent element, indenocarbazole technology, applied in the field of indenocarbazole compounds and organic electroluminescent elements, to achieve the effects of low manufacturing cost, high electron blocking property, and excellent heat resistance
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Embodiment 1
[0215]
[0216] 7-(12,12-Dimethyl-indeno[2,1-b]carbazol-10-yl)-10-phenyl-12,12-dimethyl-indeno[2,1-b] Synthesis of carbazole;
[0217] In a reaction vessel replaced with nitrogen, add
[0218]
[0219] , heated, and stirred at 120° C. for 5 hours to obtain a reaction solution. After the reaction liquid was naturally cooled to room temperature, water was added, and an extraction operation using toluene was performed. The extracted organic layer was concentrated to obtain a crude product. The crude product was purified by column chromatography (carrier: silica gel, eluent: toluene / hexane). As a result, a white solid of Compound 1 was obtained (83% yield).
[0220] For the obtained white solid, NMR was used to identify the structure. put it 1 The H-NMR diagram is shown in figure 1 middle. use 1 H-NMR (CDCl 3 ) detected the following 36 hydrogen signals.
[0221] δ(ppm)=8.49(1H)
[0222] 8.44(1H)
[0223] 8.41(1H)
[0224] 8.24(1H)
[0225] 7.88(1H)
[0226] 7...
Embodiment 2
[0234]
[0235] Synthesis of 7-(carbazol-9-yl)-10-phenyl-12,12-dimethyl-indeno[2,1-b]carbazole;
[0236] In a reaction vessel replaced with nitrogen, add
[0237]
[0238] , heated, and stirred at 120° C. for 5 hours to obtain a reaction solution. After the reaction liquid was naturally cooled to room temperature, water was added, and an extraction operation using toluene was performed. The extracted organic layer was concentrated to obtain a crude product. The crude product was purified by column chromatography (carrier: silica gel, eluent: toluene / hexane). As a result, a white solid of Compound 2 was obtained (60% yield).
[0239] For the obtained white solid, NMR was used to identify the structure. put it 1 The H-NMR diagram is shown in figure 2 middle. use 1 H-NMR (CDCl 3 ) detected the following 28 hydrogen signals.
[0240] δ(ppm)=8.41(1H)
[0241] 8.34(1H)
[0242] 8.19(2H)
[0243] 7.80(1H)
[0244] 7.75-7.68(4H)
[0245] 7.62-7.50(3H)
[0246] 7....
Embodiment 3
[0251]
[0252] Synthesis of 7-(carbazol-9-yl)-10-(biphenyl-4-yl)-12,12-dimethyl-indeno[2,1-b]carbazole;
[0253] In a reaction vessel replaced with nitrogen, add
[0254]
[0255] , heated, and stirred at 110° C. for 5 hours to obtain a reaction solution. After the reaction liquid was naturally cooled to room temperature, water was added, and an extraction operation using toluene was performed. The extracted organic layer was concentrated to obtain a crude product. The crude product was purified by column chromatography (carrier: silica gel, eluent: toluene / hexane). As a result, compound 3 was obtained as a white solid (yield 56%).
[0256] For the obtained white solid, NMR was used to identify the structure. put it 1 The H-NMR diagram is shown in image 3 middle. use 1 H-NMR (CDCl 3 ) detected the following 32 hydrogen signals.
[0257] δ(ppm)=8.42(1H)
[0258] 8.35(1H)
[0259] 8.20(2H)
[0260] 7.96-7.88(2H)
[0261] 7.84-7.73(5H)
[0262] 7.63(1H)
[02...
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Abstract
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