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Hydrochloric Acid → 1-(8-Bromo-4,5-dihydrothiazolo[4,5-d]benzo[b]oxepin-2-yl)-3,5,5-trimethylimidazolidin-2-one

HRID 2385995
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2385995
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[C:11]3[N:12]=[C:13]([N:15]4[C:19]([CH3:21])([CH3:20])[CH2:18][NH:17][C:16]4=[O:22])[S:14][C:10]=3[CH2:9][CH2:8][O:7][C:6]=2[CH:23]=1.[H-].[Na+].[CH3:26]I.Cl>O1CCCC1.CN(C)C=O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[C:11]3[N:12]=[C:13]([N:15]4[C:19]([CH3:21])([CH3:20])[CH2:18][N:17]([CH3:26])[C:16]4=[O:22])[S:14][C:10]=3[CH2:9][CH2:8][O:7][C:6]=2[CH:23]=1
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Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 582042741-(8-Bromo-4,5-dihydrothiazolo[4,5-d]benzo[b]oxepin-2-yl)-5,5-dimethylimidazolidin-2-one

Produkt 1

HCID 582041271-(8-Bromo-4,5-dihydrothiazolo[4,5-d]benzo[b]oxepin-2-yl)-3,5,5-trimethylimidazolidin-2-one

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittel
HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A mixture of 0.254 g (0.65 mmol) of 1-(8-bromo-4,5-dihydrothiazolo[4,5-d]benzo[b]oxepin-2-yl)-5,5-dimethylimidazolidin-2-one from Example 429, and 50.0 mg (1.25 mmol) of 60% sodium hydride dispersion in mineral oil in 2 ml of tetrahydrofuran and 2 ml of dimethylformamide was stirred for 20 min. 0.062 ml (1.00 mmol) of methyl iodide was added in one portion to the above mixture. The mixture was stirred for 30 min and poured into 10 ml of 1 N aq hydrochloric acid. The mixture was extracted with ethyl acetate. The organic extracts were washed with water, brine, dried over manesium sulfate and concentrated in vacuum. The residue was triturated with hexane and the resulting precipitate was filtered and washed with hexane. Yield 260 mg (98%). MS (ESI+): 408.1

Aufarbeitung

  1. extractionThe mixture was extracted with ethyl acetate
  2. washThe organic extracts were washed with water, brine
  3. dry with materialdried over manesium sulfate
  4. concentrationconcentrated in vacuum
  5. customThe residue was triturated with hexane
  6. filtrationthe resulting precipitate was filtered
  7. washwashed with hexane

Quellen und Nachweise

ORD-Eintrag
ord-a18cb93755344a808a0057ddd4ca5ef8
Quelldatensatz
uspto-grants-2012_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08263633B2

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