HRID918608
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
CONDITIONS
反应条件
- 温度
- 85 °C
PROCEDURE
实验过程
A mixture of 4-chloro-3-nitro-5-sulphamyl-benzoic acid (28 g), m-chlorophenol (26 g), sodium bicarbonate (34 g), and water (200 ml) was stirred at 85°C for 10 hours. After cooling, excess m-chlorophenol was removed by extraction with diethyl ether, and 4-(m-chlorophenoxy)-3-nitro-5-sulphamyl-benzoic acid was precipitated from the aqueous layer by the addition of 4N hydrochloric acid. After recrystallization from aqueous methanol, the melting point was 230°-232°C.
WORKUP
后处理
- temperatureAfter cooling
- customexcess m-chlorophenol was removed by extraction with diethyl ether, and 4-(m-chlorophenoxy)-3-nitro-5-sulphamyl-benzoic acid
- customwas precipitated from the aqueous layer by the addition of 4N hydrochloric acid
- customAfter recrystallization from aqueous methanol