invention in any manner the process of the present invention further may optionally comprise the addition of a predetermined additive in a preferred embodiment of the present aspect said additive is preferably selected from a group comprising diadamantyl butyl phosphonium hydroiodide a diadamantyl benzyl phosphonium hydrobromide b triphenyl phosphonium diiodide c isopropyl triphenylphosphonium iodide d triphenyl phosphonium dibromide e methyl triphenyl phosphonium bromide f tetrabutyl ammonium iodide g copper ii triflate h yetribium ii triflate i and triphenyl phosphonium dichloride j the process of the present invention is carried out at elevated pressure the term elevated pressure as used herein means pressure ranging from about 5 bar to about 150 bar in a preferred embodiment the process of the present invention is preferably carried out at a temperature of about 50 u00b0 c and at a hydrogen pressure of about 80 bar in this preferred embodiment the catalyst system comprises a ligand having formula 1r 2r 3s 1 2 dimethyl 2 3 bis diphenylphosphinomethyl cyclopentyl methanol complexed to iridium metal or salts thereof the process of the present embodiment is preferably carried out in toluene in the presence of an additive having the formula triphenyl phosphonium dibromide it has been further surprisingly found according to the present embodiment that even at a high substrate to catalyst ratio of up to about 500000 the resulting amine was found to have undergone at least 99.