2136-89-2Relevant articles and documents
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Booth,Elsey,Burchfield
, p. 2064,2065 (1935)
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Novel synthesis method of chlorobenzotrifluoride
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Paragraph 0015; 0020, (2020/01/14)
The invention discloses a novel synthesis method of chlorobenzotrifluoride, wherein o-chlorotoluene is used as a raw material, copper chloride or cuprous chloride is used as a catalyst, and o-chlorobenzotrifluoride is synthesized through two steps of chlorination and fluorination. Compared with the method in the prior art, the method of the invention has the following characteristics that raw materials are subjected to heating dehydration treatment in the dehydration kettle, so that the chlorination side reactions are few, the product purity is high, the graded chlorination device does not need to be additionally arranged, the technological process is simple, and the operation is convenient. According to the chlorination process of the invention, the catalyst is added in batches to increase the efficiency of the catalyst, so that the by-product generated by thechlorination reaction and the emission of waste gas in the production are greatly reduced, and the emission of pollutants in the production process is reduced.
Process for preparing substituted benzotrichloride compounds
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, (2008/06/13)
This invention pertains to a process for preparing substituted and unsubstituted benzotrichlorides. The process generally involves reacting the starting compound with a perchloroalkane with presence of base and a phase transfer catalyst.