Reaction #449831

Reaction equation

5-Difluoromethoxy-3-hydrazino-1-methylpyrazole

ethoxymethylenemalononitrile

→

5-Amino-1-(5-difluoromethoxy-1-methyl-3-pyrazolyl)-4-pyrazolecarbonitrile

Solvents

ethanol

Conditions

Workup

1. 1
   TemperatureAfter the mixture had been heated
2. 2
   Temperatureunder reflux for one hour it
3. 3
   Temperaturewas cooled
4. 4
   Filtrationfiltered
5. 5
   Washwashed with a small amount of ethanol

Procedure

22.5 g (0.13 mol) 5-Difluoromethoxy-3-hydrazino-1-methylpyrazole was dissolved in 310 ml ethanol and treated with 15.4 g (0.13 mol) ethoxymethylenemalononitrile. After the mixture had been heated under reflux for one hour it was cooled. The precipitate was suction filtered and washed with a small amount of ethanol.

Source