To provide a method for producing the subject compound, by which the compound useful for a key intermediate for producing a trifluoromethylating agent is produced in high yield at a low cost without using a material disrupting the ozonosphere by allowing a fluorinating agent to react with a specific biphenyl compound.
Equivalent mol or more fluorinating agent such as triethylamine- tri hydrogen fluoride salt is allowed to react with 1 mol 2-(trichloromethylthio) biphenyl of formula I at a reaction temperature of a room temperature to 250°C to provide the objective 2-(trifluoromethylthio)biphenyl of formula II, in the method for producing the 2-(trifluoromethylthio)biphenyl. The compound of formula I is obtained by allowing a chlorinating agent such as chlorine gas to react with 2-(methylthio)biphenyl under a radical-generating condition by a light radiation, etc., at a reaction temperature of (-10) to 150°C.
Ishihara, Sumi
Harada, Masayuki
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