Hydrochloric Acid → {3'-Fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methanol

HRID 15644Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 15644
[F:1][C:2]1[C:3]([CH3:25])=[C:4]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([CH:23]=[O:24])[CH:18]=2)[C:5]([CH3:16])=[CH:6][C:7]=1[O:8][CH2:9][CH2:10][CH2:11][S:12]([CH3:15])(=[O:14])=[O:13].CO.[BH4-].[Na+].Cl>O1CCCC1>[F:1][C:2]1[C:3]([CH3:25])=[C:4]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([CH2:23][OH:24])[CH:18]=2)[C:5]([CH3:16])=[CH:6][C:7]=1[O:8][CH2:9][CH2:10][CH2:11][S:12]([CH3:15])(=[O:13])=[O:14]

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 4311764Sodium borohydrideHCID 593425723'-Fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-carbaldehyde

Produkt 1

HCID 59342565{3'-Fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methanolAusbeute 94 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A solution of 3′-fluoro-2′,6′-dimethyl-4′-[3-(methylsulfonyl)propoxy]biphenyl-3-carbaldehyde (2.77 g, 8.00 mmol) in a mixed solvent of methanol (10 mL) and tetrahydrofuran (20 mL) was ice-cooled, sodium borohydride (90%, 0.336 g, 8.00 mmol) was added, and the mixture was stirred for 8 hr under nitrogen atmosphere. The reaction mixture was treated with diluted hydrochloric acid, and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=40:60-80:20), and the obtained crystals were recrystallized from heptane-ethyl acetate to give the title compound (2.75 g, yield 94%) as colorless crystals.

Aufarbeitung

  1. temperaturecooled
  2. extractionextracted with ethyl acetate
  3. washThe extract was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=40:60-80:20)
  7. customthe obtained crystals were recrystallized from heptane-ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-d7ee921b6bcb4e169dc24c8ef8291e54
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07732626B2

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