Highly Enantioselective Amido Iridium Catalysts for the Hydrogenation of Simple Ketones
作者:Torsten Irrgang、Denise Friedrich、Rhett Kempe
DOI:10.1002/anie.201004665
日期:2011.2.25
New family of cats: Tailormade amidoiridiumcatalysts with simple structures and no P ligands show excellent enantioselectivities and activities in the asymmetric hydrogenation of simpleketones (see scheme; C yellow, N green, O blue, Ir red). These catalysts may thus be the key to ecologically and economically optimized value creation
Imidazo[1,5-b]pyridazin-Amino-Phosphor-Liganden und deren Komplexverbindungen
申请人:AIKAA-Chemicals GmbH
公开号:EP2361919A1
公开(公告)日:2011-08-31
Die Erfindung betrifft neue NN(R)P-Liganden der Formel 1 (Imidazo[1,5-b]pyridazin-substituierte Amino-Phosphor-Liganden) in neutraler oder anionischer Form und damit herstellbare Katalysatoren, insbesondere zur asymmetrischen Katalyse sowie ein Verfahren zur Herstellung solcher Liganden und Katalysatoren.
IMIDAZOÝ1,5-B¨PYRIDAZIN-AMIDO-LIGANDEN UND DEREN KOMPLEXVERBINDUNGEN
申请人:AIKAA-Chemicals-GmbH
公开号:EP2099801B1
公开(公告)日:2010-11-03
[DE] IMIDAZO[1,5-B]PYRIDAZIN-AMIDO-LIGANDEN UND DEREN KOMPLEXVERBINDUNGEN<br/>[EN] IMIDAZO[1,5-B]PYRIDAZINAMIDO LIGANDS AND THEIR COMPLEXES<br/>[FR] LIGANDS IMIDAZO[1,5-B]PYRIDAZINE-AMIDO ET LEURS COMPOSÉS COMPLEXES
申请人:UNIV BAYREUTH
公开号:WO2008061663A1
公开(公告)日:2008-05-29
[EN] The invention relates to novel NN(R) ligands of the formula 1 (imidazo[1,5-b]pyridazine-substituted amino ligands) in uncharged or anionic form and catalysts which can be produced therewith, in particular for asymemtric catalysis, and a process for producing such ligands and catalysts. [FR] L'invention concerne de nouveaux ligands NN(R) de formule 1 (ligands amino à substitution imidazo[1,5-ö]pyridazine) sous forme neutre ou anionique et les catalyseurs pouvant être fabriqués avec ces ligands, notamment pour la catalyse asymétrique, ainsi qu'un procédé de fabrication de tels ligands et catalyseurs. [DE] Die Erfindung betrifft neue NN(R)-Liganden der Formel 1 (lmidazo[1,5-ö]pyridazin-substituierte Amino-Liganden) in neutraler oder anionischer Form und damit herstellbare Katalysatoren, insbesondere zur asymmetrischen Katalyse sowie ein Verfahren zur Herstellung solcher Liganden und Katalysatoren.
Novel Amido-Complexes for the Efficient Asymmetric Hydrogenation of Imines
作者:Kathrin Kutlescha、Torsten Irrgang、Rhett Kempe
DOI:10.1002/adsc.201000733
日期:2010.12.17
Novel N,N,P ligand stabilized rhodium complexes exhibiting high activities and enantioselectivities in the asymmetrichydrogenation of N-aryl imines are introduced. The ligands were synthesized from inexpensive starting materials and their modular design allows for the introduction of a broad variety of substitution patterns. Additionally, a rather low catalyst loading could be employed.