Water → 2-[(4-Chlorophenoxy)-methyl]-2-(1-ethoxycarbonyl-cycloprop-1-yl)-oxirane

Participants

Reaction Conditions

Reaction Steps

3.6 g (0.13 mol) of 80% strength sodium hydride are added under an argon atmosphere and with stirring at 10° to 20° C. to a suspension of 24 g (0.11 mol) of trimethylsulphoxonium iodide in 100 ml of dimethyl sulphoxide. After stirring for 30 minutes at 20° C., 17.1 g (0.061 mol) of 4-chlorophenoxymethyl 1-ethoxycarbonylcycloprop-1-yl ketone are added. The mixture is warmed to 60° C. for 1 hour. After this, the mixture is poured into 300 ml of water and extracted with methylene chloride. The combined organic extracts are washed with water, dried over magnesium sulphate and concentrated. 14 g (77.8% of theory) of 2-[(4-chlorophenoxy)-methyl]-2-(1-ethoxycarbonyl-cycloprop-1-yl)-oxirane are obtained as an oil which is further reacted without additional purification. ##STR18##

Provenance & Evidence