Potassium Carbonate → HCID 13536858, compound

Participants

Reaction Steps

3.2 g of ethyl 2-hydroxyimino-3-oxo-n-butyrate are dissolved in 25 ml of acetone, and 4.2 g of potassium carbonate and 7.6 g of (R)-3-(p-tosyloxy)-2-pyrrolidone are added thereto. After the mixture is stirred at room temperature for 15 hours, the mixture is concentrated under reduced pressure to dryness. 50 ml of ice-water are added to the residue, and the mixture is extracted with ethyl acetate. The extract is dried and concentrated under reduced pressure to dryness. 3.3 g of ethyl (Z)-2-[((3S)-2-pyrrolidon-3-yl)oxyimino]-3-oxo-n-butyrate are obtained.

Provenance & Evidence