Imidazole → 4-(((tert-Butyldimethylsilyl)oxy)methyl)-2-chloro-6-methoxypyridine

Beteiligte Stoffe

Reaktionsschritte

A solution of [2-chloro-6-(methyloxy)-4-pyridinyl]methanol (for a synthesis see Adamczyk, M.; Akireddy, S. R.; Reddy, Rajarathnam E. Tetrahedron 2002, 58(34), 6951)(8.02 g, 46.22 mmol) in dry DMF (100 ml) was treated with tert-butyldimethylsilyl chloride (8.36 g, 55.46 mmol) and imidazole (3.77 g, 55.46 mmol) and stirred at rt for 2 h. The reaction mixture was treated with water extracted three times with dichloromethane, dried (magnesium sulphate), evaporated and chromatographed on silica gel (100 g), eluting with 1:4 ethyl acetate-hexane to give the desired product (12.38 g, 93%).

Herkunft & Nachweise