Sodium borohydride → 4-Hydroxymethyl-3-isopropyl-phenyl 1,1,1-trifluoro-methanesulfonate

HRID 381150Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 381150
[F:1][C:2]([F:19])([F:18])[S:3]([O:6][C:7]1[CH:12]=[CH:11][C:10]([CH:13]=[O:14])=[C:9]([CH:15]([CH3:17])[CH3:16])[CH:8]=1)(=[O:5])=[O:4].[BH4-].[Na+]>CO>[F:18][C:2]([F:1])([F:19])[S:3]([O:6][C:7]1[CH:12]=[CH:11][C:10]([CH2:13][OH:14])=[C:9]([CH:15]([CH3:17])[CH3:16])[CH:8]=1)(=[O:4])=[O:5]

Komponenten

4

Edukt 2

HCID 4311764Sodium borohydrideHCID 225689104-Formyl-3-isopropyl-phenyl 1,1,1-trifluoro-methanesulfonate2×

Produkt 1

HCID 225688934-Hydroxymethyl-3-isopropyl-phenyl 1,1,1-trifluoro-methanesulfonate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of 4-formyl-3-isopropyl-phenyl 1,1,1-trifluoro-methanesulfonate (Intermediate 148, 540.0 mg, 1.82 mmols) in 7 mL MeOH at 0° C. was added NaBH4 (72.0 mg, 1.91 mmols). After stirring 2 hours at 0° C. the reaction was carefully quenched with H2O and extracted with Et2O. The combined organic layers were washed with H2O and saturated aqueous NaCl, dried (MgSO4), and concentrated under reduced pressure. The title compound was isolated by column chromatography (5-1 0% EtOAc-hexanes) as a colorless oil, 355.0 mg (90%).

Aufarbeitung

  1. customwas carefully quenched with H2O
  2. extractionextracted with Et2O
  3. washThe combined organic layers were washed with H2O and saturated aqueous NaCl
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-b4ec94b0a0f744c48ecc2b0820ee8310
Quelldatensatz
uspto-grants-2001_10
Patentnummer
US06303785B1

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