反应详情

温度

60 °C

A mixture of 4 ml of chloroform and 298 mg of zinc (II) chloride was stirred at 60° C. After 5 minutes, a mixture of 291 mg of 7-[3,5-difluoro-4-(2-propynyloxy)benzoyl]-7-azabicyclo[4.1.0]heptane and 2 ml of chloroform was added dropwise thereto at 60° C., and the resulting mixture was heated under reflux for 5 hours. Then, an aqueous saturated ammonium chloride solution was added to the reaction mixture, and this was extracted with chloroform. The organic layer was dried over magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to obtain 0.22 g of N-(2-chlorocyclohexyl)-3,5-difluoro-4-(2-propynyloxy)benzamide (hereinafter, described as the compound 87 of the present invention) represented by the formula:

1. additionwas added dropwise
2. temperatureat 60° C., and the resulting mixture was heated
3. temperatureunder reflux for 5 hours
4. extractionthis was extracted with chloroform
5. dry with materialThe organic layer was dried over magnesium sulfate
6. concentrationconcentrated under reduced pressure