反应详情

8.6 g (50 mmol) of ethyl N-allyl-N-(2-oxoethyl)-carbamate are heated under reflux overnight with 5.8 g (50 mmol) of proline in 200 ml of toluene. The mixture is concentrated and the residue is distilled.

1. concentrationThe mixture is concentrated
2. distillationthe residue is distilled