Benzyl Alcohol → 2-(Benzyloxy)-6-chloropyrazine

Reaktionsgleichung

[H-].[Na+].[CH2:3]([OH:10])[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.[Cl:11][C:12]1[CH:17]=[N:16][CH:15]=[C:14](Cl)[N:13]=1>C1COCC1>[CH2:3]([O:10][C:14]1[CH:15]=[N:16][CH:17]=[C:12]([Cl:11])[N:13]=1)[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1

Komponenten

Versuchsvorschrift

To a cooled mixture of sodium hydride (60%, 300 mg, 7.5 mmol) in THF (20 mL) at 0° C. was added dropwise benzyl alcohol (0.75 mL, 7.24 mmol). After 30 minutes, 2,6-dichloropyrazine (999 mg, 6.71 mmol) was added and mixture was warmed to room temperature and stirred overnight. After quenching with sat. NH4Cl(aq), mixture was extracted with ethyl acetate and combined organics were washed with water then brine. Organics were dried, filtered, and concentrated under reduce pressure to yield 2-(benzyloxy)-6-chloropyrazine 5.33 (1.45 g), which was used in the next step without further purification.