16807-11-7Relevant articles and documents
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Drake,N.L. et al.
, p. 1026 - 1030 (1962)
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Method for synthesizing 1-bromocarbazole by taking carbazole as raw material
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Paragraph 0055; 0058-0061; 0062; 0065; 0066; 0069; 0070; ..., (2021/11/03)
The invention discloses a method for synthesizing 1-bromocarbazole by taking carbazole as a raw material. The method comprises the following steps: mixing carbazole as a raw material with an acylation reagent, a catalyst and a reaction solvent, and carrying out acylation reaction to obtain an N-H substituted carbazole intermediate; forming a reaction system by using the carbazole intermediate obtained in the step (1) and a reaction solvent, dropwise adding a lithiation reagent to perform a lithium substitution reaction, and dropwise adding a bromination reagent to perform a bromination reaction after the reaction is completed to obtain a carbazole N-substituted 1-position bromination product; and (3) carrying out hydrolysis deprotection reaction on the carbazole N-substituted 1-position brominated product obtained in the step (2) to obtain a 1-bromocarbazole product. According to the method, phosphorus-containing compounds with serious pollution do not need to be used, the adopted raw material carbazole is easy to obtain and low in cost, post-treatment operation is simple and easy, the post-treatment cost is low, the problems that existing 1-bromocarbazole is high in production cost, complex in synthesis technological process, more in three wastes and heavy in pollution can be solved, the purity of the obtained 1-bromocarbazole is 99.5% or above, the obtained 1-bromocarbazole is high in purity, and the yield can reach more than 80%.
ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
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Paragraph 0257-0259, (2017/02/24)
An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.