| abstract |
PURPOSE: To provide an industrially advantageous method for producing 4- hydroxycyclopentenones extremely useful as a medicine, especially an intermediate for prostaglandins. n CONSTITUTION: 3-Hydroxycyclopentenones [2] or a mixture of the 3- hydroxycyclopentanones [2] with 4-hydroxycyclopentenones [1] can be subjected to isomerization treatment to produce the objective 4-hydroxycyclopentenones [1]. n COPYRIGHT: (C)1992,JPO&Japio |