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.
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.