Acetonitrile → 8-benzyl-2-bromo-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine

HRID 2188684Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2188684
[CH2:1]([N:8]1[CH2:14][C:13]2[N:15]=[CH:16][C:17]([N:19]([CH3:23])[CH:20]([CH3:22])[CH3:21])=[N:18][C:12]=2[O:11][CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Br:24]N1C(=O)CCC1=O.C(#N)C>O>[CH2:1]([N:8]1[CH2:14][C:13]2[N:15]=[C:16]([Br:24])[C:17]([N:19]([CH3:23])[CH:20]([CH3:21])[CH3:22])=[N:18][C:12]=2[O:11][CH2:10][CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

5

Edukt 3

HCID 6342AcetonitrileHCID 67184N-bromobutanimideHCID 669936178-benzyl-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine

Produkt 1

HCID 866490048-benzyl-2-bromo-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amineAusbeute 20 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

A mixture of 8-benzyl-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine (500 mg), N-bromosuccinimide (342 mg) and acetonitrile (10 mL) was stirred at room temperature for 16 hr and at 50° C. for 24 hr. Water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient: 0→40% ethyl acetate/hexane) to give the title compound (122 mg, 20%) as a colorless oil.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water and saturated brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (solvent gradient: 0→40% ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-11723a2d238b4293a06c838417e83bc0
Quelldatensatz
uspto-grants-2012_12
Patentnummer
US08324201B2

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