Anthracene-furan compound, intermediate, organic electroluminescent device and display device
A compound and furan technology, applied in the field of organic electroluminescent materials, can solve the problems of low efficiency and short service life
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preparation Embodiment 1
[0107] This preparation example provides a kind of intermediate M2, and its preparation method is as follows:
[0108]
[0109] (1) Synthesis of intermediate M2-1
[0110] Under nitrogen protection, into a 250mL three-necked flask, add 40mL toluene, 20mL ethanol, 10mL water, then add 2-bromo-1-hydroxyanthracene (2.73g), then add o-chlorobenzeneboronic acid (1.56g), K 3 PO 4 (4.24g) and tetrakistriphenylphosphine palladium (0.23g), slowly heat up to reflux reaction for 12h, cool down, add water and liquid, wash the organic layer with water, add magnesium sulfate and a small amount of silica gel to dry, filter to remove magnesium sulfate and silica gel , the solvent was removed under reduced pressure, and the obtained solid was crystallized twice with ethanol to obtain intermediate M2-1 (2.6 g).
[0111] Mass spectrometry detection was performed on the intermediate M2-1: the mass-to-charge ratio (m / z) was found to be 304.07.
[0112] (2) Synthesis of intermediate M2-2
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preparation Embodiment 2
[0120] This preparation example provides a kind of intermediate M3, and its preparation method is as follows:
[0121]
[0122] (1) Synthesis of intermediate M3-1
[0123] Referring to the synthesis method of intermediate M2-1, the difference is only that 2-bromo-1-hydroxyanthracene is replaced with 1-bromo-2-hydroxyanthracene in an equivalent amount, and other conditions are the same as in Preparation Example 1, and the intermediate Body M3-1.
[0124] Mass spectrometry detection of intermediate M3-1: the mass-to-charge ratio (m / z) was found to be 304.07.
[0125] (2) Synthesis of intermediate M3-2
[0126] Referring to the synthesis method of the intermediate M2-2, the only difference is that the intermediate M2-1 is replaced by the intermediate M3-1 of the same amount, and other conditions are the same as those of the preparation example 1, and the intermediate M3-2 is obtained.
[0127] Mass spectrometry detection was performed on the intermediate M3-2: the mass-to-c...
preparation Embodiment 3
[0133] This preparation example provides another preparation method of intermediate M2-2, and its preparation method is as follows:
[0134]
[0135] (1) Synthesis of M2-1-A
[0136] Referring to the synthesis method of the intermediate M2-1, the only difference is that the o-chlorobenzene boronic acid is replaced with o-fluorobenzene boronic acid in an equivalent amount, and other conditions are the same as in Preparation Example 1 to obtain M2-1-A.
[0137] Mass spectrometry detection of intermediate M2-1-A: the mass-to-charge ratio (m / z) was found to be 288.10.
[0138] (2) Synthesis of M2-2
[0139] Under nitrogen protection, 200 mL of DMF, intermediate M2-1-A (3.0 g), potassium carbonate (1.4 g), cuprous iodide (0.1 g) and cuprous oxide (0.1 g) were added to a 500 mL three-necked flask, The temperature was raised to reflux for 32h, cooled to room temperature, water and ethyl acetate were added for liquid separation, the organic layer was concentrated to dryness, sepa...
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