Organic electroluminescent compound and organic electroluminescent device comprising the same
An electroluminescence and compound technology, applied in the field of organic electroluminescence compounds, can solve the problems of no advantage in power efficiency, high driving voltage, low glass transition temperature, etc., and achieve excellent life characteristics, low driving voltage, and high luminous efficiency. Effect
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example 1
[0152] Example 1: Preparation of Compound C-2
[0153]
[0154] Synthesis of Compound 1-1
[0155] In a flask, 17 g of 4-chlorobenzene-1,2-diamine (142 mmol) and 30 g of benzyl (119 mmol) were dissolved in 600 mL of ethanol, and the mixture was stirred at 110° C. for 4 hours. After the reaction was completed, the obtained solid was filtered, dried and separated by column chromatography to obtain 20 g of compound 1-1 (yield: 53%).
[0156] Synthesis of Compound C-2
[0157] In a flask, 6.95 g of compound 1-1 (21.0 mmol), 7 g of 7-phenyl-7,9-dihydrobenzo[g]indolo[2,3-b]carbazole (19.3 mmol) were mixed ), 833 mg of Pd 2 (dba) 3 (0.915 mmol), 751 mg of 2-dichlorohexylphosphino-2',6'-dimethoxybiphenyl (s-Phos) (1.83 mmol), and 5.27 g of NaOtBu (54.9 mmol) were dissolved in 100 mL of o-xylene, and the mixture was refluxed at 180°C for 2 hours. After the reaction was completed, the reactant was filtered with celite, dried and separated by column chromatography to obtain...
example 2
[0160] Example 2: Preparation of Compound C-62
[0161]
[0162] In a flask, 6.9 g of compound 1-1 (25.3 mmol), 7 g of 14-phenyl-12,14-dihydrobenzo[a]indolo[3,2-h]carbazole (21.1 mmol) were mixed ), 960 mg of Pd 2 (dba) 3 (1.055 mmol), 866 mg of s-Phos (2.11 mmol), and 6 g of NaOtBu (63.3 mmol) were dissolved in 100 mL of o-xylene, and the mixture was refluxed at 180° C. for 2 hours. After the reaction was completed, the reactant was filtered with celite, dried and separated by column chromatography to obtain 11 g of compound C-62 (yield: 85%).
[0163] 1 H NMR (600MHz, DMSO, δ) 8.895 (s, 1H), 8.375-8.361 (m, 2H), 8.303-8.285 (m, 2H), 7.971-7.949 (m, 2H) 7.771-7.757 (d, J= 84Hz, 1H), 7.572-7.504 (m, 10H), 7.390-7.305 (m, 10H), 7.135-7.134 (d, J=6Hz, 2H)
[0164] compound MW melting point C-62 662.80 245℃
example 3
[0165] Example 3: Preparation of Compound C-32
[0166]
[0167] In a flask, 8.9 g of compound 1-1 (25.3 mmol), 7 g of 5-phenyl-5,7-indolino[2,3-b]carbazole (21.1 mmol), 960 mg of Pd 2 (dba) 3 (1.055 mmol), 866 mg of s-Phos (2.11 mmol), and 6 g of NaOtBu (63.3 mmol) were dissolved in 100 mL of o-xylene, and the mixture was refluxed at 180° C. for 2 hours. After the reaction was completed, the reactant was filtered with celite, dried and separated by column chromatography to obtain 11 g of compound C-32 (yield: 85%).
[0168] 1 H NMR (600MHz, DMSO, δ) 8.865 (s, 1H), 8.403 (s, 1H), 8.345-8.330 (d, J=90Hz, 1H), 8.288-8.263 (m, 2H) 8.010-7.992 (m, 1H), 7.577-7.522 (m, 9H), 7.490 (s, 1H), 7.423-7.352 (m, 13H)
[0169] compound MW melting point C-32 612.74 224℃
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