HRID223187
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
29.1 g (0.14 mol) of 6-chloroisatoic acid anhydride are stirred with 13.12 g (0.14 mol) of sarcosine in 150 ml of dimethyl sulphoxide at 110° for 1 hour. The solution obtained is concentrated and the residue is recrystallized from ethanol. There is obtained 6-chloro-3,4-dihydro-4-methyl-2H-1,4-benzodiazepine-2,5(1H)-dione of melting point 237°-238°.
WORKUP
后处理
- customThe solution obtained
- concentrationis concentrated
- customthe residue is recrystallized from ethanol