A kind of hole transport material based on silole condensed heterocycle and its preparation method and application
A hole transport material, fused heterocycle technology, applied in the field of hole materials, can solve the problems of limited wide-ranging applications, high synthesis and preparation costs, poor stability of perovskite solar cells, etc., to enhance the interface effect, improve efficiency, The effect of improving performance
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Embodiment 1
[0029] This embodiment provides a hole transport material based on silole fused heterocycle, and its chemical formula is shown in formula (6):
[0030]
[0031] The preparation method of above-mentioned hole material (compound of formula (6)) is as follows:
[0032] The compound of formula (1) used in this example is according to literature Q.Yu, W.Fu, J.Wan, X.Wu, M.Shi, H.Chen.ACS Appl.Mater.Interfaces 6 (2014) 5798-5809. The compound of formula (5) is obtained according to the literature Y.-K.Peng, K.-M.Lee, C.-C.Ting, M.-W.Hsu, C.Y.Liu.J.Mater.Chem.A, 2019 , 7, 24765-24770. Prepared; other reagents can be obtained by commercial means.
[0033] S1: the compound of formula (1) and the compound of formula (2) are subjected to a cyclization coupling reaction to generate the compound of formula (3);
[0034]
[0035] This step is specifically: under argon protection, under the condition of low temperature -78 ℃, into a 100 mL eggplant-shaped reaction flask, add 981 mg o...
Embodiment 2
[0047] This embodiment is roughly the same as Embodiment 1, and the main differences are:
[0048] S1: the synthesis of the compound of formula (3);
[0049] Under argon protection, under the condition of low temperature -78 ℃, into a 100 mL eggplant-shaped reaction flask, add 981 mg of the compound of formula (1) dissolved in 30 mL of anhydrous tetrahydrofuran, and after 5 minutes of low temperature reaction, slowly add n-butyllithium 1.56 mL ( 2.4mol / L), 529mg of the compound of formula (2) was added after the warm reaction for 1h, the refrigeration was turned off, and the temperature was slowly returned to room temperature; the reaction was performed for 8h. Water and ethyl acetate were added for extraction, the organic phase was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure to obtain 522 mg of the compound of formula (3). It was a yellow-green viscous liquid with a yield of 46%.
[0050] S2: the synthesis of the compound...
Embodiment 3
[0055] This embodiment is roughly the same as Embodiment 1, and the main differences are:
[0056] S1: the synthesis of the compound of formula (3);
[0057] Under argon protection, under the condition of low temperature -78 ℃, into a 100 mL eggplant-shaped reaction flask, add 981 mg of the compound of formula (1) dissolved in 30 mL of anhydrous tetrahydrofuran, and after 5 minutes of low temperature reaction, slowly add n-butyllithium 1.56 mL ( 2.4 mol / L), 794 mg of the compound of formula (2) was added after the warm reaction for 1 h, the refrigeration was turned off, and the temperature was slowly returned to room temperature; the reaction was performed for 12 h. Water and ethyl acetate were added for extraction, the organic phase was dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure to obtain 749 mg of the compound of formula (3). It was a yellow-green viscous liquid with a yield of 66%.
[0058] S2: the synthesis of the com...
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