Hydrochloric Acid → (2S,3R)-2-hydroxy-3-{3-[4-(trifluoromethoxy)phenyl]propyl}butanedioic acid

HRID 888232Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 888232
[OH:1][C@@H:2]([C@@H:9]([CH2:16][CH2:17][CH2:18][C:19]1[CH:24]=[CH:23][C:22]([O:25][C:26]([F:29])([F:28])[F:27])=[CH:21][CH:20]=1)[C:10]([O:12]C(C)C)=[O:11])[C:3]([O:5]C(C)C)=[O:4].[OH-].[K+].Cl>C1COCC1.O>[OH:1][C@@H:2]([C@@H:9]([CH2:16][CH2:17][CH2:18][C:19]1[CH:20]=[CH:21][C:22]([O:25][C:26]([F:27])([F:28])[F:29])=[CH:23][CH:24]=1)[C:10]([OH:12])=[O:11])[C:3]([OH:5])=[O:4]

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 14797Potassium HydroxideHCID 58487998diisopropyl (2S,3R)-2-hydroxy-3-{3-[4-(trifluoromethoxy)phenyl]propyl}butanedioate

Produkt 1

HCID 58487990(2S,3R)-2-hydroxy-3-{3-[4-(trifluoromethoxy)phenyl]propyl}butanedioic acidAusbeute 110,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 21881883Oxolane--water (1/1)Lösungsmittel

Versuchsvorschrift

To a solution of diisopropyl (2S,3R)-2-hydroxy-3-{3-[4-(trifluoromethoxy)phenyl]propyl}butanedioate (6.98 g; 16.6 mmol; 1.0 eq.) in THF/water (3/1; 140 mL) was added potassium hydroxide (5.59 g; 99.6 mmol; 6.0 eq.). The reaction mixture was then stirred for 14 h at RT. The aq. layers were acidified with an aqueous solution of HCl to pH 2, extracted with EtOAc. The combined organic layers were then dried over MgSO4 and evaporated to give the title compound as an oil (6.19 g), used in the next steps without further purification.

Aufarbeitung

  1. extractionextracted with EtOAc
  2. dry with materialThe combined organic layers were then dried over MgSO4
  3. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-b4339f150c964837b0dec952608075ce
Quelldatensatz
uspto-grants-2012_08
Patentnummer
US08247437B2

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