474918-32-6Relevant articles and documents
Preparation method 2 -amino -9-9 - diphenyl fluorene
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Paragraph 0065-0067; 0083-0085; 0099-0101, (2021/11/03)
The invention discloses a preparation method of 2 - amino -9 and 9 - diphenyl fluorene, which comprises the following steps: taking 9 - fluorenone as a raw material, and carrying out bromination reaction to obtain 2 - bromo -9 - fluorenone. 2 - Bromo -9 - fluorenone and bromobenzene formative reagent are reacted to obtain 2 - bromo -9 - phenyl -9 - hydroxyl - fluorene. 2 - Bromo -9 - phenyl -9 - hydroxy - fluorene was subjected to an alkylation reaction with benzene to give 2 - bromo -9, 9 - diphenylfluorene. 2 - Bromo -9, 9 - diphenylfluorene and cuprous oxide, palladium acetate (II) and N - methylpyrrolidinone were reacted in liquid ammonia to give 2 - amino -9, 9 - diphenylfluorene. The preparation method is used for preparing 2 - amino -9 and 9 - diphenylfluorene, the used preparation is easy to obtain, the technological process is simple, the product yield is high, the production cost is reduced, 2 - amino -9 and 9 - diphenyl fluorene are produced.
2 - bromo - 9, 9 - diphenyl wu synthetic method
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Paragraph 0014; 0026-0028; 0031-0033; 0034-0038; 0041-0043, (2017/08/25)
The invention provides a synthesis method of 2-bromo-9,9-diphenylfluorene and belongs to the technical field of organic synthesis. The synthesis method comprises steps as follows: (1), after 2-bromo-9-phenyl-fluorene-9-ol and benzene are mixed, reaction gas is introduced for a reaction at the temperature of 61-66 DEG C while the components are stirred, the temperature is increased and backflow is performed after gas introduction is finished, and water is separated while backflow is performed; (2), a catalyst is added in 0.5-1 h after a system obtained from the step (1) is cooled, the temperature is increased to 35-50 DEG C, and the mixture reacts for 3.5-5 h; (3), 2-bromo-9,9-diphenylfluorene is obtained through separation and purification. The synthesis method of 2-bromo-9,9-diphenylfluorene is low in cost, especially when hydrogen chloride and hydrogen bromide are utilized; with the adoption of an aluminum trichloride anhydrous and ferric chloride anhydrous mixed catalysis mode, the catalysis effect is good, the reaction time is short, and the yield is high; the operation is simple, the process is reliable, and scale-up is facilitated.
DERIVATIVES OF 2-DIARYLAMINOFLUORENE AND ORGANIC ELECTRONIC COMPOUNDS CONTAINING THEM
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Page/Page column, (2015/07/27)
The present invention relates to certain fluorenes, to the use of the compounds in an electronic device, and to an electronic device comprising at least one of these compounds. The present invention furthermore relates to a process for the preparation of the compounds and to a formulation and composition comprising one or more of the compounds.