Asymmetric hydrogenation method for ketone compound
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United States of America Patent
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Feb 24, 2015
Grant Date -
Feb 28, 2013
app pub date -
Apr 16, 2012
filing date -
Aug 22, 2011
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Abstract
The invention relates to an asymmetric hydrogenation method for ketone compounds, comprising the step of: under hydrogen atmosphere, in the presence of an in situ catalyst derived from a chiral ligand and a ruthenium salt, adding a ketone compound and a base into a second solvent to carry out an asymmetric hydrogenation for the ketone compound. The invention can obtain a conversion of 100% and a highest asymmetric inducement effect of 99.7% for the ketone compound. The invention has the advantages including simple procedure, high conversion and selectivity, good atom economy and good prospect of industrial application.
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