Tert-butyl 3-(trichloromethyl)oxaziridine-2-carboxylate → Tert-butyl 2-(3-benzylpentan-3-yl)hydrazinecarboxylate

HRID 1504296Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1504296
[CH2:1]([C:8]([NH2:13])([CH2:11][CH3:12])[CH2:9][CH3:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.ClC(Cl)(Cl)C1O[N:17]1[C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20]>C(Cl)Cl>[CH2:1]([C:8]([NH:13][NH:17][C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])([CH2:11][CH3:12])[CH2:9][CH3:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

4

Edukt 2

HCID 11139943Tert-butyl 3-(trichloromethyl)oxaziridine-2-carboxylateHCID 185063513-Benzylpentan-3-amine

Produkt 1

HCID 89807785Tert-butyl 2-(3-benzylpentan-3-yl)hydrazinecarboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

2.68 g of 3-benzylpentan-3-amine was dissolved in 20 mL of methylene chloride, mixed with 4.8 g (18 mmol) of separately prepared t-butyl 3-(trichloromethyl)-1,2-oxaziridine-2-carboxylate under cooling with ice, and stirred at room temperature for 30 minutes, and the reaction solution was washed with 10% aqueous citric acid, with saturated aqueous sodium hydrogen carbonate and with saturated aqueous sodium chloride successively and dried over anhydrous sodium sulfate, and methylene chloride was removed under reduced pressure. The resulting residue was purified by intermediate pressure silica gel column chromatography (silica gel 30 g, ethyl acetate:hexane=0:100 to 20:80) to give 1.62 g of the desired product as a light brown solid.

Aufarbeitung

  1. temperatureunder cooling with ice
  2. washthe reaction solution was washed with 10% aqueous citric acid, with saturated aqueous sodium hydrogen carbonate and with saturated aqueous sodium chloride successively
  3. dry with materialdried over anhydrous sodium sulfate, and methylene chloride
  4. customwas removed under reduced pressure
  5. customThe resulting residue was purified by intermediate pressure silica gel column chromatography (silica gel 30 g, ethyl acetate:hexane=0:100 to 20:80)

Quellen und Nachweise

ORD-Eintrag
ord-4a4f4af356664bd4a8a462fb3f696386
Quelldatensatz
uspto-grants-2015_12
Patentnummer
US09212348B2

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