Patent ID: 8975434
Filing Date: 2015-03-10
Classification: C07C

Abstract:
1. A method for producing a cyclopentanone compound represented by the formula (I) (wherein X represents a halogen atom, an alkyl group, an alkoxy group, a haloalkyl group, a haloalkoxy group or a phenyl group; n is an integer of 0 to 5; and, when n is 2 or greater, the groups represented by X may be different from each other), the method comprising the steps of: A) substituting the group represented by Y by a hydrogen atom by allowing a compound represented by the formula (III) or an intermediate compound obtained from the compound represented by the formula (III) to react with a catalyst or a halogenating agent: (wherein X and n are as defined for the formula (I); Y represents an alkoxycarbonyl group or a cyano group; Z B) substituting, by hydrogen atoms, (i) the group or the atom represented by Z