N,N'-Dimethylethylenediamine → (R)-4-tert-butyl-3-{4-[4-(2,4-dimethylphenyl)piperazine-1-carbonyl]phenyl}oxazolidin-2-one

HRID 1804149

Reaktionsgleichung

Reaktionsgleichung von HRID 1804149
[CH3:1][C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[CH:4][C:3]=1[N:9]1[CH2:14][CH2:13][N:12]([C:15]([C:17]2[CH:22]=[CH:21][C:20](I)=[CH:19][CH:18]=2)=[O:16])[CH2:11][CH2:10]1.[C:24]([C@@H:28]1[CH2:32][O:31][C:30](=[O:33])[NH:29]1)([CH3:27])([CH3:26])[CH3:25].C(=O)([O-])[O-].[K+].[K+].CNCCNC>[Cu]I.O.C1(C)C=CC=CC=1>[C:24]([C@@H:28]1[CH2:32][O:31][C:30](=[O:33])[N:29]1[C:20]1[CH:21]=[CH:22][C:17]([C:15]([N:12]2[CH2:13][CH2:14][N:9]([C:3]3[CH:4]=[CH:5][C:6]([CH3:8])=[CH:7][C:2]=3[CH3:1])[CH2:10][CH2:11]2)=[O:16])=[CH:18][CH:19]=1)([CH3:27])([CH3:26])[CH3:25]

Komponenten

8

Edukt 4

HCID 8070N,N'-DimethylethylenediamineHCID 11430Potassium CarbonateHCID 2734860(4R)-4-tert-Butyl-1,3-oxazolidin-2-oneHCID 58484733[4-(2,4-Dimethylphenyl)piperazin-1-yl](4-iodophenyl)methanone

Produkt 1

HCID 67381127(R)-4-tert-butyl-3-{4-[4-(2,4-dimethylphenyl)piperazine-1-carbonyl]phenyl}oxazolidin-2-oneAusbeute 1,1 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 962WaterLösungsmittelHCID 1140TolueneLösungsmittel

Versuchsvorschrift

To a mixture of [4-(2,4-dimethylphenyl)piperazin-1-yl](4-iodophenyl)methanone (841 mg) described in Preparation Example 8, (R)-(+)-4-tert-butyloxazolidin-2-one (214 mg), potassium carbonate (553 mg) and copper (I) iodide (76 mg) were added toluene (2 mL) and N,N′-dimethylethylenediamine (100 μL), and the mixture was refluxed for 8 hr. After cooling, water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with saturated brine, and the solvent was evaporated. The residue was purified by column chromatography (chloroform:methanol) to give the title compound (7 mg).

Aufarbeitung

  1. temperaturethe mixture was refluxed for 8 hr
  2. temperatureAfter cooling
  3. extractionthe mixture was extracted with chloroform
  4. washThe organic layer was washed with saturated brine
  5. customthe solvent was evaporated
  6. customThe residue was purified by column chromatography (chloroform:methanol)

Quellen und Nachweise

ORD-Eintrag
ord-fcb9e87eeb9e440ab812b4e634db72cd
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08354401B2

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