The present invention relates to an enantioselective hydrogenation catalyst having a solubility in water and more particularly to a complex of {HEAD ~ a transition metal} such as ruthenium, rhodium, {TAIL ~ iridium}, palladium, etc., and a water soluble phosphine compound 
such as
The present invention relates to an enantioselective hydrogenation catalyst having a solubility in water and more particularly to a complex of { HEAD ~ a transition metal } such as ruthenium , rhodium , { TAIL ~ iridium } , palladium , etc . , and a water soluble phosphine compound
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH