Chloromethyl Methyl Ether → Methyl 2-(methoxymethoxy)-4-methylbenzoate

関与物質

反応手順

To a suspension of sodium hydride (1.62 g, 0.0675 mol) in 90 mL of dimethylformamide was added dropwise a solution of methyl 4-methylsalicylate (10.2 g, 0.0614 mol) in 20 mL of diethyl ether. After stirring for 15 minutes, a solution of chloromethyl methyl ether (5.6 mL, 0.0737 mol) in 10 mL of diethyl ether was added. The reaction mixture was stirred at room temperature for 18 hours and then it was partitioned between water and diethyl ether. The layers were separated and the aqueous layer was extracted an additional three times with diethyl ether. The combined organic extracts were washed with brine, dried with magnesium sulfate, and concentrated in vacuo to give 14.5 g of an oil. The product was purified by flash chromatography on silica gel eluting with 10%-15% ethyl acetate in hexane to give 9.41 g (73%) of product as an oil.

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