Hydrochloric Acid → 1-Benzyloxy-5-(benzyloxycarbonyl)-2-chloro-3-oxo-4-azapentane

HRID 2230763

Reaktionsgleichung

Reaktionsgleichung von HRID 2230763
[Cl:1][CH:2]([CH2:6][O:7][CH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[C:3](Cl)=[O:4].C1(C)C=CC(S(O)(=O)=O)=CC=1.[CH2:26]([O:33][C:34](=[O:37])[CH2:35][NH2:36])[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.C(N(CC)CC)C.Cl>C(Cl)Cl.O>[CH2:8]([O:7][CH2:6][CH:2]([Cl:1])[C:3](=[O:4])[NH:36][CH2:35][C:34]([O:33][CH2:26][C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1)=[O:37])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 6451311O-benzylglycine toluene-p-sulphonateHCID 187637642-Chloro-3-(phenylmethoxy)propanoyl chloride

Produkt 1

HCID 225614381-Benzyloxy-5-(benzyloxycarbonyl)-2-chloro-3-oxo-4-azapentane

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

76 g (326.1 mmol) of 2-chloro-3-(benzyloxy)-propionic acid chloride (produced according to Inorg. Chem. Vol. 31; 2422, 1992) is added in drops to 100 g (296.4 mmol) of glycine benzyl ester-p-toluenesulfonic acid salt and 33.0 g (326.1 mmol) of triethylamine in 400 ml of methylene chloride at 0° C., and it is stirred for 2 hours at this temperature. 500 ml of ice water is added, and the water phase is set at pH 2 with 10% aqueous hydrochloric acid. The organic phase is separated, washed once each with 300 ml of 5% aqueous hydrochloric acid, 300 ml of 5% aqueous soda solution and 400 ml of water. The organic phase is dried on magnesium sulfate and evaporated to dryness in a vacuum. The residue is chromatographed on silica gel (mobile solvent: methylene chloride/hexane/acetone=15/5/1).

Aufarbeitung

  1. customThe organic phase is separated
  2. washwashed once each with 300 ml of 5% aqueous hydrochloric acid, 300 ml of 5% aqueous soda solution and 400 ml of water
  3. customThe organic phase is dried on magnesium sulfate
  4. customevaporated to dryness in a vacuum
  5. customThe residue is chromatographed on silica gel (mobile solvent: methylene chloride/hexane/acetone=15/5/1)

Quellen und Nachweise

ORD-Eintrag
ord-76bba216e85342e895ae6d90826a471c
Quelldatensatz
uspto-grants-2002_07
Patentnummer
US06426059B1

Verknüpfte Notizen

Wird geladen…