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Water → 2-[(4-{[(4-Bromobenzyl)oxy]methyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl ester

HRID 914337
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Reaktionsgleichung

Reaktionsgleichung von HRID 914337
[C:1]([O:5][C:6](=[O:18])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][OH:17])[N:15]=1)([CH3:9])[CH3:8])([CH3:4])([CH3:3])[CH3:2].[Br:19][C:20]1[CH:27]=[CH:26][C:23]([CH2:24]Br)=[CH:22][CH:21]=1.CC(C)([O-])C.[K+].O>CN(C)C=O>[C:1]([O:5][C:6](=[O:18])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][O:17][CH2:24][C:23]2[CH:26]=[CH:27][C:20]([Br:19])=[CH:21][CH:22]=2)[N:15]=1)([CH3:9])[CH3:8])([CH3:2])([CH3:3])[CH3:4]
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Komponenten

6

Edukt 4

HCID 962WaterHCID 685274-Bromobenzyl bromideHCID 23665647Potassium tert-butoxideHCID 597592182-{[4-(Hydroxymethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester

Produkt 1

HCID 597588332-[(4-{[(4-Bromobenzyl)oxy]methyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl esterAusbeute 56,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

2-{[4-(Hydroxymethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester (5.0 g) synthesized in Example 10 and 4-bromobenzylbromide (4.75 g) were dissolved in N,N-dimethylformamide (50 mL), potassium tert-butoxide (2.33 g) was added, and the mixture was stirred at room temperature for 1 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=7:1) to give the title compound (4.5 g) as a colorless oil.

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=7:1)

Quellen und Nachweise

ORD-Eintrag
ord-dc1ebc08892947dca20a63e44c314f4b
Quelldatensatz
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08026370B2

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