Reaktion #9178

Reaktionsgleichung

bis-(2-oxo-3-oxazolidinyl)-phosphorylchloride

triethylamine

O-benzylhydroxylamine hydrochloride

8-bromo octanoic acid

→

8-bromo-octanoic acid benzyloxyamide

Ausbeute 78.0%

Lösungsmittel

dichloromethane

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.STIRRINGStirring
2. 2
   ExtraktionThe solution was extracted twice with 150 ml each of 1M aqueous hydrochloric acid and twice with 150 ml each of 1M aqueous sodium bicarbonate
3. 3
   SonstigeThe organic solvent was removed i

Vorschrift

In an ice bath, 14 ml triethylamine was added to a suspension of 3.2 g (20 mmol) O-benzylhydroxylamine hydrochloride in 150 ml dichloromethane. Stirring was continued until the solution became clear. Then, 4.5 g (20 mmol) 8-bromo octanoic acid was added, followed by 5.6 g (22 mmol) bis-(2-oxo-3-oxazolidinyl)-phosphorylchloride. Stirring was continued at ambient temperature for 18 h. The solution was extracted twice with 150 ml each of 1M aqueous hydrochloric acid and twice with 150 ml each of 1M aqueous sodium bicarbonate. The organic solvent was removed i. vac. to give 5.1 g (78%) of 8-bromo-octanoic acid benzyloxyamide as a colorless oil. MS: 330 (M+H+)

Quelle