1,1'-Carbonyldiimidazole → 3-[2-(4-Nitro-phenyl)-ethyl]-oxazolidin-2-one

HRID 1094014Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1094014
C1N=CN([C:6](N2C=NC=C2)=[O:7])C=1.[N+:13]([C:16]1[CH:21]=[CH:20][C:19]([CH2:22][CH2:23][NH:24][CH2:25][CH2:26][OH:27])=[CH:18][CH:17]=1)([O-:15])=[O:14]>CN(C1C=CN=CC=1)C.C(Cl)Cl>[N+:13]([C:16]1[CH:17]=[CH:18][C:19]([CH2:22][CH2:23][N:24]2[CH2:25][CH2:26][O:27][C:6]2=[O:7])=[CH:20][CH:21]=1)([O-:15])=[O:14]

Komponenten

5

Edukt 2

HCID 682631,1'-CarbonyldiimidazoleHCID 227227442-[2-(4-Nitro-phenyl)-ethylamino]-ethanol

Produkt 1

HCID 107761683-[2-(4-Nitro-phenyl)-ethyl]-oxazolidin-2-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 142844-(Dimethylamino)pyridineKatalysatorHCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

CDI (89 mmoles) is added to a solution of the compound obtained in Step A (44.5 mmoles) and DMAP (44.5 mmoles) in DCM (250 ml). After stirring for 4 hours at ambient temperature, the reaction mixture is diluted with 300 ml of DCM and then washed with 2M HCl solution (5×200 ml). The organic phase is dried over magnesium sulphate, filtered and evaporated to dryness to yield the title product in the form of an orange solid, which is used directly in the next Step.

Aufarbeitung

  1. washwashed with 2M HCl solution (5×200 ml)
  2. dry with materialThe organic phase is dried over magnesium sulphate
  3. filtrationfiltered
  4. customevaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-173f39befa634026a8c3fcaff00d8636
Quelldatensatz
uspto-grants-2012_03
Patentnummer
US08133889B2

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