Ruthenium complexes and their use in asymmetric hydrogenation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 4, 2003
Grant Date -
Jul 18, 2002
app pub date -
Jul 23, 2001
filing date -
Jul 24, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the preparation of an enantiomerically enriched chiral amine of formula (10), or the opposite enantiomer thereof, from an inline of formula (11) ##STR1## wherein (i) R.sup.1 is aryl, R.sup.2 is alkyl and R.sup.3 is aryl or aryl-CH.sub.2 --, or (iii) R.sup.2 is linked with R.sup.1 and/or R.sup.3 to form one or more rings and R.sup.3 or R.sup.1 (if not in a ring) is H or a non-interfering organic group, the number of C atoms in each of R.sup.1, R.sup.2 and R.sup.3 being up to 30, comprises asymmetric hydrogenation of the imine in the presence of a base and, as catalyst, a ruthenium complex of a chiral diphosphine and a chiral diamine.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully