2,4'-Difluorobenzophenone
Chemical Properties
2,4′-difluorobenzophenone is oily liquid, m.p.22～24℃, b.p.176～178℃/2.13kpa, n20D1.5698, relative density 1.244, insoluble in water, soluble in benzene, xylene, ketone, etc. Organic solvents.
Purpose
2,4′-difluorobenzophenone is an intermediate of the fungicide flutriafol Chemicalbook.
Used as an intermediate of pesticide powder triazole
Production method
The preparation method is as follows: fluorobenzene and anhydrous aluminum trichloride are placed in a reaction kettle, 2-fluorobenzoyl chloride is added dropwise at a low temperature, while stirring, after the dropwise addition, the temperature is raised to reflux, the reaction is continued for 3h, and cooled to room temperature. , HCl was added dropwise, pH=3～4 was controlled, the layers were separated, the oil layer was dried and distilled to obtain 2,4-difluorobenzophenone.
2,4′-difluorobenzophenone is oily liquid, m.p.22～24℃, b.p.176～178℃/2.13kpa, n20D1.5698, relative density 1.244, insoluble in water, soluble in benzene, xylene, ketone, etc. Organic solvents.
Purpose
2,4′-difluorobenzophenone is an intermediate of the fungicide flutriafol Chemicalbook.
Used as an intermediate of pesticide powder triazole
Production method
The preparation method is as follows: fluorobenzene and anhydrous aluminum trichloride are placed in a reaction kettle, 2-fluorobenzoyl chloride is added dropwise at a low temperature, while stirring, after the dropwise addition, the temperature is raised to reflux, the reaction is continued for 3h, and cooled to room temperature. , HCl was added dropwise, pH=3～4 was controlled, the layers were separated, the oil layer was dried and distilled to obtain 2,4-difluorobenzophenone.