Acetic Acid → 2-(Methylthio)-4-[(phenylmethyl)oxy]pyrimidine

HRID 19666

Reaktionsgleichung

Reaktionsgleichung von HRID 19666
[CH2:1]([OH:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].Cl[C:12]1[CH:17]=[CH:16][N:15]=[C:14]([S:18][CH3:19])[N:13]=1.C(O)(=O)C>O1CCOCC1.O>[CH3:19][S:18][C:14]1[N:15]=[C:16]([O:8][CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[CH:17]=[CH:12][N:13]=1

Komponenten

7

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

Benzyl alcohol (1.3 mL) was added dropwise to a suspension of sodium hydride (60% in mineral oil, 0.74 g) in 12.4 mL of dry dioxane, and the mixture was stirred at 100° C. for 30 min. A solution of 4-chloro-2-(methylthio)pyrimidine (2.0 g) in dry dioxane (8.2 mL) was added dropwise at 50° C. and the mixture was stirred at this temperature for 5 hours. After cooling at room temperature the mixture was acidified with glacial acetic acid, treated with water and extracted with dichloromethane. The organic phases were dried over anhydrous Na2SO4 filtered and concentrated under reduced pressure. The crude product was purified by a silica SPE cartridge (70 g) eluting with ciclohexane/ethyl acetate from 95/5 to 9/1 to give the title compound as a white solid (1.22 g).

Aufarbeitung

  1. stirringthe mixture was stirred at this temperature for 5 hours
  2. temperatureAfter cooling at room temperature the mixture
  3. extractionextracted with dichloromethane
  4. dry with materialThe organic phases were dried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe crude product was purified by a silica SPE cartridge (70 g)
  8. washeluting with ciclohexane/ethyl acetate from 95/5 to 9/1

Quellen und Nachweise

ORD-Eintrag
ord-cf272e86264b42c7abe6ebbb6c17ca0d
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07745458B2

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