HRID918630

反应详情

EQUATION

反应方程式

HRID 918630 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

Isopropylamine (120 ml) and water (8 ml) were added to 4-chloro-3-nitro-5-sulphamyl-benzoic acid (22.4 g), while cooling. Then the reaction mixture was stirred for 5 days at room temperature. After evaporation in vacuo, the residue was triturated with 4N hydrochloric acid, after which the resulting 4-isopropylamino-3-nitro-5-sulphamyl-benzoic acid was collected by suction. After recrystallization from aqueous ethanol, the acid was obtained with a melting point of 206°C (decomp.).

WORKUP

后处理

  1. temperaturewhile cooling
  2. customAfter evaporation in vacuo
  3. customthe residue was triturated with 4N hydrochloric acid
  4. customafter which the resulting 4-isopropylamino-3-nitro-5-sulphamyl-benzoic acid was collected by suction
  5. customAfter recrystallization from aqueous ethanol
  6. customthe acid was obtained with a melting point of 206°C (decomp.)