Toluene → HCID 86605733, compound

Participants

Reaction Steps

To a mixture of methyl 5-{4-[(4-hydroxymethyl-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-methanesulfonyloxybenzoate (0.20 g) and toluene (10 mL) was added thionyl chloride (0.055 g), and the mixture was heated under reflux for 1 hr. After concentration of the reaction mixture, ethyl acetate was added to the residue. The ethyl acetate layer was washed successively with saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate and concentrated to give methyl 5-{4-[(4-chloromethyl-2-methoxyphenoxy)methyl]-5-methyl-1,3-oxazol-2-yl}-2-methanesulfonyloxybenzoate (0.14 g, yield 67%) as colorless crystals. Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 146-147° C.

Provenance & Evidence