反应详情

温度

60 °C

A mixture of 24.5 g of 2-(1-naphthylmethylene)succinic acid and 260 ml of acetic anhydride was heated at 60° C. for an hour, and then the reaction mixture was evaporated under reduced pressure. To the residue was added a mixture of benzene and hexane (1/1, by volume). The precipitated crystals were collected by filtration to obtain 16.0 g of 2-(1-naphthylmethylene)succinic anhydride as orange-yellow crystals.

1. customthe reaction mixture was evaporated under reduced pressure
2. additionTo the residue was added
3. additiona mixture of benzene and hexane (1/1, by volume)
4. filtrationThe precipitated crystals were collected by filtration