molar equivalent amount of trans 2 phenylcyclopentylamine hydrochloride m p 147 u00b0 149 u00b0 c the desired product was obtained m p 192 u00b0 195 u00b0 c a using rhodium on charcoal catalyst in a paar shaker 12 6 g of cis 2 phenylcyclopentylamine hydrochloride m p 204 u00b0 206 u00b0 c in 100 ml of water was hydrogenated in 20 hours when the theoretical amount of hydrogen had been taken up the catalyst was removed by filtration the filtrate made basic with sodium hydroxide solution and the resulting precipitate was extracted into ether after evaporation of the ether the residue was distilled b p 100 u00b0 102 u00b0 c 6 0 mm the hydrochloride salt was prepared and recrystallized from isopropanolether to give 4 4 g of cis 2 cyclohexyl cyclopentylamine hydrochloride m p 174 u00b0 176 u00b0 c b by the procedure of example 1 only employing a reaction time of 29 days and substituting for cis 2 phenylcyclopentylamine hydrochloride an appropriate amount of cis 2 cyclohexylcyclopentylamine hydrochloride the desired product was obtained m p 179 u00b0 180 u00b0 c by the procedure described in example 3 a only substituting for cis 2 phenylcyclopentylamine hydrochloride an appropriate amount of trans 2 phenylcyclopentylamine hydrochloride m p 142 u00b0 143 u00b0 c the hydrochloride salt of trans 2 cyclohexylcyclopentylamine was obtained m p 199 u00b0 200 u00b0 c following the procedure of example 1 only substituting for cis 2 phenylcyclopentylamine hydrochloride an appropriate amount of trans 2 cyclohexylcyclopentylamine hydrochloride and employing a reaction time of 38.