CYCLOPENTANE DERIVATIVES

The invention provides cyclopentane derivatives of the general formula in which n represents an integer from 0 to 5, each R represents a halogen atom, nitro, cyano, hydroxyl, alkyl, haloalkyl, alkoxy, haloalkoxy, amino, alkylamino, dialkylamino, alkoxycarbonyl, carboxyl, alkanoyl, alkylthio, alkylsulphinyl, alkylsulphonyl, carbamoyl, alkylamido, cycloalkyl or phenyl group, and R2 independently represent a hydrogen atom or an alkyl group, and R5 represents a hydrogen atom or an alkyl or cycloalkyl group; a process for their preparation; compositions containing such compounds and their use as fungicides. Compounds of formula I are also useful as intermediates in the preparation of certain fungicidally active cyclopentane derivatives.