Process of asymmetric hydrogenation of ketals and acetals
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United States of America Patent
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Feb 7, 2017
Grant Date -
Jun 30, 2016
app pub date -
Dec 18, 2013
filing date -
Dec 18, 2012
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Abstract
The present invention relates to a process of the asymmetric hydrogenation of a ketal of an unsaturated ketone or an acetal of an unsaturated aldehyde by molecular hydrogen in the presence of at least one chiral iridium complex. This process yields chiral compounds in a very efficient way and is very advantageous in that the amount of iridium complex can be remarkably reduced.
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