Process for reducing 3-heteroaryl-3-oxopropionic acid derivatives
申请人:——
公开号:US20030225274A1
公开(公告)日:2003-12-04
The present invention relates to a process for preparing stereoisomerically enriched 3-heteroaryl-3-hydroxycarboxylic esters by reducing 3-heteroaryl-3-oxocarboxylic esters in the presence of ruthenium-containing catalysts.
Enantio-Differentiating Hydrogenation of Methyl 2-Furoylacetate and Its Analogs over Tartaric Acid-Modified Raney Nickel
作者:Satoshi Nakagawa、Noriko Haruna、Delicia E. Acosta、Tadateru Endo、Takashi Sugimura、Akira Tai
DOI:10.1246/cl.1999.1055
日期:1999.10
Hydrogenation of methyl 2-furoylacetate over TA-MRNi reduced the three unsaturated bonds to give methyl tetrahydro-2-furoylacetate, the enantiomeric excess (ee) of which at the 3-position was 77%, whereas the 4-position was racemic. Under the same conditions, the substrate of 4-methoxycarbonyl analogue was resulted in hydrogenation of only the ketone moiety to give the corresponding chiral sec-alcohol
Process for preparing 3-heteroaryl-3-hydroxypropanoic acid derivatives
申请人:Berendes Frank
公开号:US20060264641A1
公开(公告)日:2006-11-23
The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.
Verfahren zur Reduktion von 3-Heteroaryl-3-Oxopropionsäurederivaten
申请人:BAYER AG
公开号:EP1340746A1
公开(公告)日:2003-09-03
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung stereoisomerenangereicherter 3-Heteroaryl-3-hydroxycarbonsäureester durch Reduktion von 3-Heteroaryl-3-oxocarbonsäureestern in Gegenwart von Ruthenium enthaltenden Katalysatoren.