Oxygen → 2-Hydroxy4,4-dimethyl-gamma-butyrolactone

Beteiligte Stoffe

Reaktionsschritte

A mixture of 3 mmol of ethyl acrylate, 3 ml of 2-propanol, 0.6 mmol of N-hydroxyphthalimide, 0.003 mmol of cobalt(II) acetate, 0.015 mmol of acetylacetonatocobalt(III), and 1 ml of acetonitrile was stirred at 60° C. in an oxygen atmosphere (1 atm) for 12 hours. A gas chromatographic analysis of products in a reaction mixture revealed that ethyl 2,4-dihydroxy-4-methylpentanoate and α-hydroxy-γ,γ-dimethyl-γ-butyrolactone were formed in yields of 1.5% and 75%, respectively, with a conversion from ethyl acrylate of 81%.

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