Iridium diamine catalyst for the asymmetric transfer hydrogenation of ketones
A simple and very efficient chiral aqua iridium(III) diamine complex leads to excellent enantioselectivities in the asymmetric transfer hydrogenation of various α-cyano and α-nitro ketones. The catalyst provides the ortho-substituted aromatic alcohols with especially high ee values. The diamine ligands can be used directly as chiral ligands; conversion into the corresponding sulfamide is not necessary.
Vazquez-Villa, Henar,Reber, Stefan,Ariger, Martin A.,Carreira, Erick M.
CHIRAL IRIDIUM AQUA COMPLEX AND METHOD FOR PRODUCING OPTICALLY ACTIVE HYDROXY COMPOUND BY USING THE SAME
The present invention provides a novel chiral iridium aqua complex used for asymmetric transfer hydrogenation. The present invention relates to chiral iridium aqua complex represented by the formula (1): wherein R1 and R2 are the sam
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(2009/12/07)
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