Water → 5-Benzyloxy-2-cyanomethylpyridine

HRID 640402

Reaktionsgleichung

Reaktionsgleichung von HRID 640402
[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([CH2:15]Cl)=[N:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O.[C-:18]#[N:19].[Na+]>C(O)C>[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([CH2:15][C:18]#[N:19])=[N:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

5

Edukt 3

HCID 962Water2×HCID 8929Sodium CyanideHCID 178541585-(Benzyloxy)-2-(chloromethyl)pyridine

Produkt 1

HCID 221813855-Benzyloxy-2-cyanomethylpyridineAusbeute 87 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

To a solution of 5-benzyloxy-2-chloromethyl-pyridine (2.13 g, 9.11 mmol) described in Manufacturing Example 127-1-3 in ethanol (30 mL) and water (10 mL) was added sodium cyanide (580 mg, 11.8 mmol), which was stirred for 4 hours and 25 minutes under reflux. Water was added to the reaction mixture at room temperature, which was extracted with ethyl acetate. The organic layer was separated, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure, and the residue was purified by silica gel column chromatography (heptane:ethyl acetate=1:1) to obtain the title compound (1.77 g, 87%).

Aufarbeitung

  1. temperatureunder reflux
  2. extractionwhich was extracted with ethyl acetate
  3. customThe organic layer was separated
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated under a reduced pressure
  7. customthe residue was purified by silica gel column chromatography (heptane:ethyl acetate=1:1)

Quellen und Nachweise

ORD-Eintrag
ord-f2bc9ad880fd4cff89d39651e9e42a6f
Quelldatensatz
uspto-grants-2010_04
Patentnummer
US07691882B2

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