Reaktion #570395

Reaktionsgleichung

hydrazine dihydrochloride

citraconic anhydride

→

citraconic hydrazide

Lösungsmittel

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturWhen the mixture was heated
2. 2
   Sonstigea homogeneous solution was first obtained
3. 3
   Sonstigeto form in the mixture
4. 4
   TemperaturAfter 30 minutes at reflux
5. 5
   Temperaturto cool
6. 6
   workup.STIRRINGwith stirring
7. 7
   Sonstigethe solid was separated by filtration
8. 8
   Sonstigedried in a vacuum oven overnight

Vorschrift

To a solution of 210 g of hydrazine dihydrochloride in 2 liters of water there was added, in one portion, 224 g of citraconic anhydride. When the mixture was heated to boiling with stirring, a homogeneous solution was first obtained and then a white precipitate started to form in the mixture. After 30 minutes at reflux, the mixture was allowed to cool with stirring. It was then cooled to 10° C. and the solid was separated by filtration and dried in a vacuum oven overnight to give citraconic hydrazide melting at about 281-283.5° C. with decomposition.

Quelle