Studies on the reduction of some substituted cyclohexanones

Five different cyclohexanones, with at least one Ph group at position 3, have been reduced by different methods and the stereochemical course of these reductions discussed 3,3,5-Trimethyl-5-phenyl-cyclohexanone (V) has been shown to exist in a non-chair conformation, probably in one or more of the flexible forms. Configurations have been assgined to the epimeric cyclohexanols obtained in the reductions.