HRID1742064

反应详情

EQUATION

反应方程式

HRID 1742064 的结构方程式

PROCEDURE

实验过程

2 g (4.8 mmol) of 5-amino-3-methyl-1-(O-tosyl-3-nitrobenzohydroximoyl)-pyrazole are heated for 5 minutes under reflux in 5 ml of acetanhydride. This is then cooled down and hydrolysed with water. The solid mass which forms after a little while is separated off, washed with water, dried in the air and recrystallised from acetonitrile. 1.9 g (86%) of 5-acetamido-3-methyl-1-(O-tosyl-3-nitrobenzohydroximoyl)-pyrazole with a m. pt. of 208°-212° C. (decomp.) are obtained.

WORKUP

后处理

  1. customis separated off
  2. washwashed with water
  3. customdried in the air
  4. customrecrystallised from acetonitrile