反应详情

24.1 gm of bromine were added slowly over a period of 30 minutes to a stirred suspension of 28.5 gm of ethyl N-(3-acetyl-phenyl)-carbamate in 13.3 gm of dry dioxane and 245 ml of dry ether. After stirring the reaction solution for 2 hours more, it was cooled, and the product which crystallized out was collected and washed with ether, yielding 38.5 gm of the title compound, m.p. 108°-110° C.

1. temperatureit was cooled
2. customthe product which crystallized out
3. customwas collected
4. washwashed with ether