反应详情

温度

70 °C

A 1-liter, 4-necked flask equipped with a stirrer, thermometer, condenser and gas inlet tube was charged with 227.5 g (1.00 mole) of 4-chlorophenyl dichloromethyl sulfide, 50 g of water and 500 g of methanol. The mixture was heated to 70° C. for 5 hours to complete hydrolysis. After completion of the reaction, 357 g (1.05 moles) of 10% aqueous solution of hydrogen peroxide was added dropwise at 40° C. over a period of 1 hour. The mixture was stirred for 1 hour at the same temperature. The precipitated crystals were filtered, giving 134.7 g of 4,4'-dichlorodiphenyl disulfide in a yield of 93.9% based on 4-chlorophenyl dichloromethyl sulfide.

1. customA 1-liter, 4-necked flask equipped with a stirrer
2. customhydrolysis
3. additionwas added dropwise at 40° C. over a period of 1 hour
4. filtrationThe precipitated crystals were filtered