反应详情

温度

90 °C

A mixture of 82.0 g of 2-tert-butyl-4-methylphenol, 140.0 g of acetic anhydride and 3.0 g of hydrobromic acid (48%) is heated at 90° C. for 1 hour. 280.0 g of acetic acid, 2.5 g of cobalt(II) acetate (tetrahydrate) and 2.5 g of manganese(II) bromide (tetrahydrate) are added, and oxygen (30 ml/min) is passed through the solution at 110° C. The acetic acid is partially removed by applying a vacuum. The reaction mixture which remains is poured into 500 ml of water and filtered, giving 99.5 g (84%) of the product in the form of colourless crystals having a melting point of from 180° to 182° C.

1. customis passed through the solution at 110° C
2. customThe acetic acid is partially removed
3. additionThe reaction mixture which remains is poured into 500 ml of water
4. filtrationfiltered