Patent classifications
C
CHEMISTRY; METALLURGY
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C07
ORGANIC CHEMISTRY
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C07D
HETEROCYCLIC COMPOUNDS
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507/00
Heterocyclic compounds containing a condensed beta-lactam ring system, not provided for by groups C07D463/00, C07D477/00 or C07D499/00 - C07D505/00; Such ring systems being further condensed
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C07D507/02
containing 3-oxa-1-azabicyclo [3.2.0] heptane ring systems
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C07D507/02

Process of asymmetric hydrogenation of ketals and acetals
09561989 · 2017-02-07 · ·

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.