| abstract |
[Problem] The present invention provides an industrially-preferable, cost-efficient, low-cost production method for 4-hydroxy-2-hydroxymethyl-2-cyclopenten-1-one (a compound represented by formula (I)) useful as a medicine, an agricultural chemical, or a raw material or intermediate of a medicine, an agricultural chemical, or the like. [Solution] According to the present invention, this compound represented by formula (I) is produced by subjecting an easily available compound represented by formula (II) (tri-O-acetyl-D-glucal) to a heating reaction in pressurized water. |