Material for organic electroluminescence element, and organic electroluminescence element using the material
a technology of organic electroluminescence and material, applied in thermoelectric devices, organic chemistry, germanium organic compounds, etc., can solve the problem of material exhibits more excellent performance, and achieve excellent heat resistance, no defects in pixels, and excellent light emission efficiency
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synthesis example 1
Synthesis of Compound A-2
[0156]Compound A-2 was synthesized in accordance with the route of synthesis shown in the following:
Intermediate Compound A
[0157]Into a flask, 3.12 g of 4-dibenzofuranboronic acid, 4.07 g of 1-bromo-3-iodobenzene, 0.33 g of tetrakis-triphenylphosphinepalladium(0), 25 g of a 2M aqueous solution of sodium carbonate and 70 ml of dimethoxyethane were placed, and the resultant mixture was heated under the refluxing condition for 8 hours under the atmosphere of argon. After it was confirmed in accordance with the thin layer chromatography (TLC) that the reaction had been completed, dichloromethane was added. The obtained mixture was washed with water and a saturated aqueous solution of sodium chloride, and the organic layer was separated. The organic layer was dried with magnesium sulfate, filtered and concentrated, and a yellow oily substance was obtained. After purification in accordance with the column chromatography, 4.13 g of a white solid substance was obtai...
synthesis example 2
Synthesis of Compound B-1
[0162]Compound B-1 was synthesized in accordance with the route of synthesis shown in the following:
Intermediate Compound B
[0163]Into a flask, 3.3 g of 2-dibenzothiopheneboronic acid, 4.0 g of 1-bromo-3-iodobenzene, 0.31 g of tetrakis-triphenylphosphinepalladium(0), 25 ml of a 2M aqueous solution of sodium carbonate and 70 ml of dimethoxyethane were placed, and the resultant mixture was heated under the refluxing condition for 9 hours under the atmosphere of argon. After it was confirmed in accordance with TLC that the reaction had been completed, dichloromethane was added. The obtained mixture was washed with water and a saturated aqueous solution of sodium chloride, and the organic layer was separated. The organic layer was dried with magnesium sulfate, filtered and concentrated, and a yellow oily substance was obtained. After purification in accordance with the column chromatography, 3.96 g of a white solid substance was obtained (the yield: 83%; Intermed...
synthesis example 3
Synthesis of Compound B-2
[0168]Compound B-2 was synthesized in accordance with the route of synthesis shown in the following:
Intermediate Compound C
[0169]Into a flask, 3.3 g of 4-dibenzothiopheneboronic acid, 4.0 g of 1-bromo-3-iodobenzene, 0.31 g of tetrakis-triphenylphosphinepalladium(0), 25 ml of a 2M aqueous solution of sodium carbonate and 70 ml of dimethoxyethane were placed, and the resultant mixture was heated under the refluxing condition for 9 hours under the atmosphere of argon. After it was confirmed in accordance with TLC that the reaction had been completed, dichloromethane was added. The obtained mixture was washed with water and a saturated aqueous solution of sodium chloride, and the organic layer was separated. The organic layer was dried with magnesium sulfate, filtered and concentrated, and a yellow oily substance was obtained. After purification in accordance with the column chromatography, 4.2 g of a white solid substance was obtained (the yield: 88%; Intermedi...
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