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APPLICATION OF IRIDIUM COMPLEXES IN ASYMMETRIC CATALYTIC HYDROGENATION OF UNSATURATED CARBOXYLIC ACIDS
APPLICATION OF IRIDIUM COMPLEXES IN ASYMMETRIC CATALYTIC HYDROGENATION OF UNSATURATED CARBOXYLIC ACIDS
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机译:铱络合物在不饱和羧酸不对称催化加氢中的应用
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摘要
The present invention relates to a preparation method of carboxylic acids with optical activity, particularly, publishes that very useful chiral carboxylic acids can be obtained by the asymmetric catalytic hydrogenation of tri-substituted α,β-unsaturated carboxylic acids, with the complexes of the chiral phosphor nitrogen ligands and iridium used as the catalysts which show high activity and enantioselectivity (up to 99.8% ee), thus provides a more efficient method with higher enantioselectivity for asymmetric catalytic hydrogenation of chiral carboxylic acid-like compounds, and has important application value to asymmetric hydrogenation of chiral carboxylic acids.
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