Reaktion #2191

Reaktionsgleichung

N-(4-chloro-4'-trifluoromethylsulfonylmethylbenzhydryl) -N'-methoxycarbonylhydrazine

hydrochloric acid

→

desired product

N-(4-Chloro-4'-trifluoromethylsulfonylmethylbenzhydryl)-N'-methoxycarbonylhydrazine Hydrochloride

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONwas added
2. 2
   TemperaturThe mixture was gradually heated to the reflux temperature
3. 3
   workup.STIRRINGstirred for 2 hours
4. 4
   Temperaturunder reflux
5. 5
   workup.WAITit was left
6. 6
   Temperaturto cool
7. 7
   workup.DISTILLATIONThe solvent was distilled off under reduced pressure

Vorschrift

N-(4-chloro-4'-trifluoromethylsulfonylmethylbenzhydryl) -N'-methoxycarbonylhydrazine (1.6 g) was added to methanol (80 ml), and hydrochloric acid (3 ml) was added thereto with stirring at room temperature. The mixture was gradually heated to the reflux temperature and stirred for 2 hours under reflux, and then it was left to cool. The solvent was distilled off under reduced pressure to obtain the desired product as a slightly yellow powder (1.6 g, melting point: 52° to 54° C., yield: 91.5%).

Quelle