反应详情

Oxalyl chloride (25.0 g., 0.2 mol.) is added to a suspension of 16.4 g. (0.14 mol.) of butyl carbamate in 75 ml. of chloroform. After cessation of gas evolution, the reaction mixture is refluxed in a nitrogen atmosphere for 12 hours. The mixture is cooled, filtered and the filtrate is distilled in vacuo to give butoxycarbonyl isocyanate.

1. temperatureAfter cessation of gas evolution, the reaction mixture is refluxed in a nitrogen atmosphere for 12 hours
2. temperatureThe mixture is cooled
3. filtrationfiltered
4. distillationthe filtrate is distilled in vacuo