Methacrylic Acid → gamma-Butyrolactone methacrylate

Participants

Reaction Steps

100 g of α-bromo-γ-butyrolactone and 104.4 g of methacrylic acid (2.0 mole times with respect to α-bromo-γ-butyrolactone) were charged, and methyl isobutyl ketone was added thereto in an amount of 3 weight times that of α-bromo-γ-butyrolactone to prepare a solution. Then, 183.6 g of triethylamine (3.0 mole times with respect to α-bromo-γ-butyrolactone) was added dropwise thereto, followed by stirring at room temperature for about 10 hours. After filtration, an organic layer was washed with 5% by weight aqueous solution of sodium bicarbonate, followed by washing with water for 2 times. The organic layer was concentrated to obtain α-methacryloyloxy-γ-butyrolactone represented by the following formula in a 85% yield.

Provenance & Evidence