- A 2-fluoro-3-chlorobenzene process for the preparation of formaldehyde
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The invention relates to the field of fine chemical intermediates, in particular to a preparation method for 2-fluoro-3-chlorobenzaldehyde, namely, a fluorine-containing medical intermediate. According to the method, 2,3-dichlorobenzonitrile serves as raw materials, and 2-fluoro-3-chlorobenzaldehyde is obtained after fluorination, hydrolysis, oxidation and reduction are conducted. The method is low in raw material cost, high in apparent availability, mature and stable in reaction technology, high in operability and beneficial to industrial production.
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Paragraph 0025; 0026
(2017/03/08)
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- Room-temperature nucleophilic aromatic fluorination: Experimental and theoretical studies
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(Chemical Equation Presented) Taming the reagent: The use of anhydrous tetrabutylammonium fluoride (TBAFanh) in nucleophilic aromatic substitution reactions, including variants of the selective halogen-exchange and fluorodenitration processes (see scheme), was investigated. It was shown that TBAFanh permits these reactions to be performed under surprisingly mild conditions if it is used in relatively nonpolar media.
- Sun, Haoran,DiMagno, Stephen G.
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p. 2720 - 2725
(2007/10/03)
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