| abstract |
The present invention provides a novel chiral iridium aqua complex used for asymmetric transfer hydrogenation. n The present invention relates to chiral iridium aqua complex represented by the formula (1):n nwherein nR 1 and R 2 are the same or different and each is an aryl group optionally having at least one substituent selected from the group consisting of a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a haloalkoxy group having 1 to 6 carbon atoms, a nitro group, a carboxyl group and a cyano group, or the like; and n nR 3 and R 4 are the same or different and each is an alkyl group or the like. |