HRID1287724
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
A mixture of 4-chloro-3-nitro-5-sulphamyl-benzoic acid (28 g), m-toluidine (32.2 g), and water (500 ml) was refluxed for 3 hours. After cooling and acidification with 2N hydrochloric acid, the precipitated 3-nitro-5-sulphamyl-4-(m-toluidino)-benzoic acid was collected by suction, washed with water, and recrystallized from isopropanol. After drying at 115° C in vacuo, the melting point was 256°-259° C.
WORKUP
后处理
- temperaturewas refluxed for 3 hours
- temperatureAfter cooling
- customacidification with 2N hydrochloric acid, the precipitated 3-nitro-5-sulphamyl-4-(m-toluidino)-benzoic acid was collected by suction
- washwashed with water
- customrecrystallized from isopropanol
- customAfter drying at 115° C in vacuo