A kind of organic charge transport material that can be used for OLED display and preparation method thereof
A charge transport, organic technology, applied in the direction of organic chemistry, silicon organic compounds, chemical instruments and methods, etc., can solve the problem of no contribution to electroluminescence, achieve good thermal stability, improve charge transport performance, reduce agglomeration and mutual The effect of action
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Embodiment 1
[0027] Example 1, an organic charge transport material that can be used for OLED display, the material is a derivative based on tetraphenylsilicon and amyloxydibenzothiophene, and its structure is shown in formula I:
[0028]
[0029] The preparation method of above-mentioned derivative is as follows:
[0030] .
[0031] The preparation of intermediate II: under the protection of argon, add 74.2g of bis(4-bromophenyl)-phenylsilane and 50ml of tetrahydrofuran to the three-necked flask successively, cool to -78°C, add 225mL of n-butyllithium dropwise, After the dropwise addition was completed, stir at -78°C for 1 hour, then slowly add 124.28 g of tributyl borate dropwise, after the dropwise addition, keep warm and react for 1 hour, the temperature will rise automatically, and the reaction will last overnight. Add 400ml of water, 400ml of concentrated hydrochloric acid, and 550ml of petroleum ether into the reaction flask, and stir for 2h. The organic layer was washed twic...
Embodiment 2
[0034] Example 2, an organic charge transport material that can be used for OLED display, the material is a derivative based on tetraphenylsilicon and pentoxydibenzothiophene, and its structure is shown in formula I:
[0035]
[0036] The preparation method of above-mentioned derivative is as follows:
[0037] .
[0038] The preparation of intermediate II: under the protection of argon, add 37.1g of bis(4-bromophenyl)-phenylsilane and 30ml of tetrahydrofuran to the three-necked flask successively, cool to -78 ℃, add dropwise 113mL) of n-butyllithium , the dropwise addition was completed, stirred at -78°C for 1 hour, then slowly added 62.14 g of tributyl borate dropwise, after the dropwise addition was completed, the temperature was automatically raised after 1 hour of heat preservation reaction, and the reaction was carried out overnight. Add 200ml of water, 200ml of concentrated hydrochloric acid, and 300ml of petroleum ether into the reaction flask, and stir for 2h. T...
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