Hydrochloric Acid → N-(1-(5-amino-2-benzyloxyphenyl)-1-methylethyl)carbamic acid t-butyl ester

HRID 1861971Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1861971
[C:1]([O:5][C:6](=[O:28])[NH:7][C:8]([C:11]1[CH:16]=[C:15]([N+:17]([O-])=O)[CH:14]=[CH:13][C:12]=1[O:20][CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)([CH3:10])[CH3:9])([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+].Cl.C(=O)(O)[O-].[Na+]>O.O.O.O.O.O.[Ni](Cl)Cl.C(Cl)(Cl)Cl.CO>[C:1]([O:5][C:6](=[O:28])[NH:7][C:8]([C:11]1[CH:16]=[C:15]([NH2:17])[CH:14]=[CH:13][C:12]=1[O:20][CH2:21][C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=1)([CH3:10])[CH3:9])([CH3:2])([CH3:3])[CH3:4]

Komponenten

8

Edukt 4

HCID 313Hydrochloric AcidHCID 516892Sodium BicarbonateHCID 4311764Sodium borohydrideHCID 22981078N-(1-(2-benzyloxy-5-nitrophenyl)-1-methylethyl)carbamic acid t-butyl ester

Produkt 1

HCID 22981125N-(1-(5-amino-2-benzyloxyphenyl)-1-methylethyl)carbamic acid t-butyl esterAusbeute 94,3 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 11791229Dichloronickel;hexahydrateKatalysatorHCID 887MethanolLösungsmittelHCID 6212ChloroformLösungsmittel

Versuchsvorschrift

To a mixture of the compound (100 mg) obtained in Example 565, nickel (II) chloride hexahydrate (123 mg) and methanol (6 ml), sodium borohydride (39 mg) was added. The reaction mixture was stirred at room temperature for 10 min; then, 2 N HCl was added and a saturated aqueous sodium bicarbonate solution and chloroform were also added. The organic layer was washed with a saturated aqueous sodium chloride solution, dried with anhydrous sodium sulfate and the solvent was distilled off under reduced pressure. The resulting residue was purified by silica gel column chromatography (eluent, n-hexane:ethyl acetate=3:2) to give 87 mg of the titled compound (yield, 94%).

Aufarbeitung

  1. additionwas added
  2. washThe organic layer was washed with a saturated aqueous sodium chloride solution
  3. dry with materialdried with anhydrous sodium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe resulting residue was purified by silica gel column chromatography (eluent, n-hexane:ethyl acetate=3:2)

Quellen und Nachweise

ORD-Eintrag
ord-7f84a9a7e5e84b4aa5ba1b129490f017
Quelldatensatz
uspto-grants-2003_03
Patentnummer
US06534546B1

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