Hydrochloric Acid → Bis[2-(acryloyloxy)ethyl] benzene-1,3-dicarboxylate

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Reaction Steps

A 500 ml round-bottom flask was initially charged with 64.1 g of hydroxyethyl acrylate in 100 ml of pyridine/toluene (1:1, v/v) together with 0.1 g of 2,6-di-tert-butyl-4-methylphenol at 0° C., and 56.1 g of isophthaloyl chloride were slowly added dropwise. The mixture was stirred at room temperature until the hydroxyethyl acrylate content had fallen below 0.1%. Thereafter, the mixture was poured onto 0.5 l of ice-water and acidified with 1 N aqueous hydrochloric acid. The aqueous phase was extracted three times with 0.5 l each time of tert-butyl methyl ether. The organic phase was washed with 10% sodium hydrogencarbonate solution, dried over sodium sulfate and filtered. Another 0.1 g of 2,6-di-tert-butyl-4-methylphenol was added and the organic solvent was distilled off. The product was obtained as a colorless oil.

Provenance & Evidence