Potassium Carbonate → HCID 57644354, compound

Participants

Reaction Steps

A reaction vessel was charged with 1,580 parts of methanol, 25 parts of PPTS, 254 parts of 2-(2-acetoxyethyl)-2-(2-propenyloxycarbonyl)cyclopentanone (14) obtained in Preparation Example 3 at room temperature. The mixture was refluxed for three hours with stirring. After cooling the reaction solution to room temperature, 30 parts of potassium carbonate was added and the mixture was stirred for one hour at room temperature. Insoluble matters were removed by filtration, the filtrate was washed with saturated brine, and the solvent was evaporated. The residue was distilled under reduced pressure to obtain 146 parts of the target compound (15) (yield: 80%).

Provenance & Evidence