Sodium Bicarbonate → tert-Butyl (2-(hydroxymethyl)pyridin-3-yl)carbamate

HRID 250982Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 250982
[C:1]([O:5][C:6](=[O:16])[NH:7][C:8]1[C:9]([CH:14]=[O:15])=[N:10][CH:11]=[CH:12][CH:13]=1)([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+].C([O-])(O)=O.[Na+]>CO>[C:1]([O:5][C:6](=[O:16])[NH:7][C:8]1[C:9]([CH2:14][OH:15])=[N:10][CH:11]=[CH:12][CH:13]=1)([CH3:4])([CH3:2])[CH3:3]

Komponenten

5

Edukt 3

HCID 516892Sodium BicarbonateHCID 4311764Sodium borohydrideHCID 10911130tert-butyl N-(2-formylpyridin-3-yl)carbamate

Produkt 1

HCID 17750194tert-Butyl (2-(hydroxymethyl)pyridin-3-yl)carbamate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

To a solution of (2-formyl-pyridin-3-yl)-carbamic acid tert-butyl ester (0.581 g, 2.66 mmol) in dry MeOH (10 mL) was slowly added NaBH4 (0.200 g, 5.32 mmol). The mixture was stirred for 40 min, and saturated aqueous NaHCO3 (10 mL) was added. The MeOH was removed, and the aqueous residue was extracted with CH2Cl2 (5×25 mL). The organic extracts were combined, and dried over anhydrous Na2SO4. After filtration the solvent was removed by evaporation under vacuum, affording (2-hydroxymethyl-pyridin-3-yl)-carbamic acid tert-butyl ester as a white solid.

Aufarbeitung

  1. customThe MeOH was removed
  2. extractionthe aqueous residue was extracted with CH2Cl2 (5×25 mL)
  3. dry with materialdried over anhydrous Na2SO4
  4. filtrationAfter filtration the solvent
  5. customwas removed by evaporation under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-c97326dc895b4320b2a3a3b0de7a7507
Quelldatensatz
uspto-grants-2011_01
Patentnummer
US07863293B2

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