反应详情

温度

80 °C

270 g (1.15 mols) of 2,6-ditert.butyl-4-nitrosophenol are dissolved in 2.5 liters of dimethylacetamide. A solution of 256 g (1.35 mols) of p-toluenesulphonic acid chloride in 1.1 liters of dimethylacetamide is added dropwise at room temperature. 112 g (1.10 mols) of triethylamine are then added rapidly and the mixture is stirred for 2 hours at 80° C. After cooling, it is poured into 15 liters of water and the precipitated product is filtered off. After drying it is recrystallised from hexane. 298 g of 2,6-ditert.butyl-benzoquinone monoxime p-toluenesulphonate of melting point 110° C are thus obtained.

1. temperatureAfter cooling
2. filtrationthe precipitated product is filtered off
3. customAfter drying it
4. customis recrystallised from hexane