Methyl 3-[(dipropylamino)carbonyl]-5-(1,3-thiazol-2-yl)benzoate → 3-[(Dipropylamino)carbonyl]-5-(1,3-thiazol-2-yl)benzoic Acid

HRID 348877

Reaktionsgleichung

Reaktionsgleichung von HRID 348877
[CH2:1]([N:4]([CH2:22][CH2:23][CH3:24])[C:5]([C:7]1[CH:8]=[C:9]([CH:14]=[C:15]([C:17]2[S:18][CH:19]=[CH:20][N:21]=2)[CH:16]=1)[C:10]([O:12]C)=[O:11])=[O:6])[CH2:2][CH3:3]>O1CCCC1.CO.O.O.[OH-].[Li+]>[CH2:22]([N:4]([CH2:1][CH2:2][CH3:3])[C:5]([C:7]1[CH:8]=[C:9]([CH:14]=[C:15]([C:17]2[S:18][CH:19]=[CH:20][N:21]=2)[CH:16]=1)[C:10]([OH:12])=[O:11])=[O:6])[CH2:23][CH3:24]

Komponenten

4

Edukt 1

HCID 21086169Methyl 3-[(dipropylamino)carbonyl]-5-(1,3-thiazol-2-yl)benzoate

Produkt 1

HCID 210857833-[(Dipropylamino)carbonyl]-5-(1,3-thiazol-2-yl)benzoic Acid

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 168937Lithium hydroxide, monohydrateLösungsmittelHCID 21892291Methanol tetrahydrofuran waterLösungsmittel

Versuchsvorschrift

Methyl 3-[(dipropylamino)carbonyl]-5-(1,3-thiazol-2-yl)benzoate (4.4 g, 12.8 mmol) is dissolved in 1:1:1 tetrahydrofuran/methanol/water (60 mL), and lithium hydroxide monohydrate is added (1.1 g, 25.6 mmol). The reaction is stirred 15 min and is concentrated under reduced pressure. The residue is diluted in chloroform and washed with water, brine, dried (magnesium sulfate), filtered, and concentrated under reduced pressure to give the title compound. ESI MS m/z 333.1 [M+H]+.

Aufarbeitung

  1. additionis added (1.1 g, 25.6 mmol)
  2. concentrationis concentrated under reduced pressure
  3. additionThe residue is diluted in chloroform
  4. washwashed with water, brine
  5. dry with materialdried (magnesium sulfate)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-a10ac7d16bd6481d8bdd56ef11edfc62
Quelldatensatz
uspto-grants-2007_02
Patentnummer
US07176242B2

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