Triethylamine → 1-Benzyloxycarbonylamino-3-methoxy-2-propanol

HRID 1646959Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1646959
C(N(CC)CC)C.[NH2:8][CH2:9][CH:10]([OH:14])[CH2:11][O:12][CH3:13].[CH2:15]([O:22][C:23](Cl)=[O:24])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1>O1CCCC1.C(OCC)(=O)C>[CH2:15]([O:22][C:23]([NH:8][CH2:9][CH:10]([OH:14])[CH2:11][O:12][CH3:13])=[O:24])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

Komponenten

6

Edukt 3

HCID 8471TriethylamineHCID 10387Benzyl chloroformateHCID 1245101-Amino-3-methoxypropan-2-ol

Produkt 1

HCID 190124911-Benzyloxycarbonylamino-3-methoxy-2-propanolAusbeute 56,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

19.69 g of triethylamine are added to a solution of 10.23 g of 1-amino-3-methoxy-2-propanol in 100 ml of tetrahydrofuran. After the mixture is cooled, a solution of 16.60 g of benzyloxycarbonyl chloride in 50 ml of tetrahydrofuran is added dropwise thereto for 30 minutes. The mixture is stirred at room temperature for one hour. The reaction mixture is diluted with ethyl acetate, washed with water and dried. The residue is purified by silica gel column chromatography [solvent: ethyl acetate-hexane (2:1)]. 13.2 g of 1-benzyloxycarbonylamino-3-methoxy-2-propanol are obtained as colorless oil. ##STR24##

Aufarbeitung

  1. temperatureAfter the mixture is cooled
  2. washwashed with water
  3. customdried
  4. customThe residue is purified by silica gel column chromatography [solvent: ethyl acetate-hexane (2:1)]

Quellen und Nachweise

ORD-Eintrag
ord-c33a07d0cd4d4088a7e2fb3cff0a4ca4
Quelldatensatz
uspto-grants-1993_01
Patentnummer
US05182296

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