Methacrylic Acid → Oxolan-2-yl 2-methylprop-2-enoate

関与物質

反応条件

反応手順

To a 500-mL, 3-necked round bottomed flask equipped with a thermocouple temperature monitor, nitrogen inlet and a magnetic stirrer was added 300 mL of dichloromethane, 24.5 g (0.29 mol) of methacrylic acid and 21.4 g (0.305 mol) of 2,3-dihydrofuran. The flask was cooled under Nitrogen to −40° C. and 0.05 g of methanesulfonic acid was added. The mixture was warmed to 0° C. and stirred for 6 hours at which time it was recooled to −40° C. and an excess (1 mL) of triethylamine was added. The solution was then washed with saturated sodium bicarbonate, water and brine and dried over anhydrous magnesium sulfate. Distillation from sodium carbonate at reduced pressure resulted in 26 g (58%) of the title compound.

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