Water → (3-Chloropyridin-4-yl)methanol

HRID 629989

Reaktionsgleichung

Reaktionsgleichung von HRID 629989
[BH4-].[Na+].[Cl:3][C:4]1[CH:5]=[N:6][CH:7]=[CH:8][C:9]=1[CH:10]=[O:11].O>CO>[Cl:3][C:4]1[CH:5]=[N:6][CH:7]=[CH:8][C:9]=1[CH2:10][OH:11]

Komponenten

5

Edukt 3

HCID 962WaterHCID 27629953-Chloro-4-pyridinecarboxaldehydeHCID 4311764Sodium borohydride

Produkt 1

HCID 12742466(3-Chloropyridin-4-yl)methanol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel2×

Versuchsvorschrift

To a solution of sodium borohydride (601 mg, 15.9 mmol) in anhydrous methanol (25 mL) was added a solution of 3-chloropyridine-4-carbaldehyde (1.5 g, 10.6 mmol) in anhydrous methanol (5 mL) at 0° C. The mixture was stirred for 1 hour at room temperature. Water was added and extracted 3 times with ethyl acetate. The combined organic phase was washed with brine and dried over sodium sulfate. After evaporation of the solvent, (3-chloropyridin-4-yl)methanol was obtained as a white solid (1.4 g, 90% yield) and used for next step without further purification; 1H NMR (400 MHz, CDCl3): δ 2.41 (t, J=5.9 Hz, 1H), 4.83 (dd, J=0.8 Hz, J=5.9 Hz, 2H), 7.52-7.55 (m, 1H), 8.51 (m, 2H).

Aufarbeitung

  1. extractionextracted 3 times with ethyl acetate
  2. washThe combined organic phase was washed with brine
  3. dry with materialdried over sodium sulfate
  4. customAfter evaporation of the solvent

Quellen und Nachweise

ORD-Eintrag
ord-f21de125addf41228b167d5a33fae9ea
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09315521B2

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