N-Iodosuccinimide → (R)-1-(3,5-dichloro-phenyl)-5-iodo-3-methyl-3-(4-trifluoromethoxy-benzyl)-1H-imidazo[1,2-a]imidazol-2-one

HRID 2374786Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2374786
[Cl:1][C:2]1[CH:3]=[C:4]([N:9]2[C:13](=[O:14])[C@@:12]([CH3:27])([CH2:15][C:16]3[CH:21]=[CH:20][C:19]([O:22][C:23]([F:26])([F:25])[F:24])=[CH:18][CH:17]=3)[N:11]3[CH:28]=[CH:29][N:30]=[C:10]23)[CH:5]=[C:6]([Cl:8])[CH:7]=1.[I:31]N1C(=O)CCC1=O.C1(C)C=CC(S([O-])(=O)=O)=CC=1.[NH+]1C=CC=CC=1>C1COCC1.CCOC(C)=O>[Cl:8][C:6]1[CH:5]=[C:4]([N:9]2[C:13](=[O:14])[C@@:12]([CH3:27])([CH2:15][C:16]3[CH:17]=[CH:18][C:19]([O:22][C:23]([F:26])([F:24])[F:25])=[CH:20][CH:21]=3)[N:11]3[C:28]([I:31])=[CH:29][N:30]=[C:10]23)[CH:3]=[C:2]([Cl:1])[CH:7]=1

Komponenten

6

Edukt 3

HCID 120273N-IodosuccinimideHCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 11676886HCID 11676886, Verbindung

Produkt 1

HCID 11585072(R)-1-(3,5-dichloro-phenyl)-5-iodo-3-methyl-3-(4-trifluoromethoxy-benzyl)-1H-imidazo[1,2-a]imidazol-2-oneAusbeute 65 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of (R)-1-(3,5-dichloro-phenyl)-3-methyl-3-(4-trifluoromethoxy-benzyl)-1H-imidazo[1,2-a]imidazol-2-one (Example 1) (1.54 g, 3.38 mmol) in 30 mL of THF was treated with N-iodosuccinimide (0.846 g, 3.76 mmol) and pyridinium p-toluenesulfonate (0.086 g, 0.37 mmol). The mixture was stirred at room temperature for 17 h, then diluted with EtOAc and washed with 10% Na2S2O3 solution and water. The combined aqueous layers were extracted with 10 mL of EtOAc. The combined organic phases were washed with 25 mL of brine, dried over Na2SO4, filtered and concentrated. The crude orange oil was purified by silica gel chromatography to provide 1.27 g (65%) of (R)-1-(3,5-dichloro-phenyl)-5-iodo-3-methyl-3-(4-trifluoromethoxy-benzyl)-1H-imidazo[1,2-a]imidazol-2-one as an off-white oil (582.0, M+1).

Aufarbeitung

  1. washwashed with 10% Na2S2O3 solution and water
  2. extractionThe combined aqueous layers were extracted with 10 mL of EtOAc
  3. washThe combined organic phases were washed with 25 mL of brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude orange oil was purified by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-36b6db40464e485bb1747345eda101d2
Quelldatensatz
uspto-grants-2008_12
Patentnummer
US07462637B2

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