Process for preparing phosphites and transition metal complexes
申请人:——
公开号:US20040116726A1
公开(公告)日:2004-06-17
The present invention relates to a process for preparing phosphites and their transition metal complexes and also to their use in catalytic processes.
本发明涉及一种制备亚磷酸盐及其过渡金属络合物的工艺,以及它们在催化工艺中的用途。
Solid-Phase Parallel Synthesis of Phosphite Ligands
作者:Bert H. G. Swennenhuis、Ruifang Chen、Piet W. N. M. van Leeuwen、Johannes G. de Vries、Paul C. J. Kamer
DOI:10.1021/ol703070x
日期:2008.3.1
Various routes for the synthesis of polymer-bound phosphites and phosphoramidites have been investigated. In the presence of a suitable activator the supported phosphoramidites react cleanly with alcohols to give the corresponding monodentate phosphite ligands in solution. We have applied this novel solid-phase route in the parallel synthesis of several monodentate chiral and achiral phosphite ligands.
Verfahren zur Herstellung von Phosphiten und Übergangsmetallkomplexen
申请人:Saltigo GmbH
公开号:EP1394168B1
公开(公告)日:2008-05-21
Why Are BINOL-Based Monophosphites Such Efficient Ligands in Rh-Catalyzed Asymmetric Olefin Hydrogenation?
作者:Manfred T. Reetz、Andreas Meiswinkel、Gerlinde Mehler、Klaus Angermund、Martin Graf、Walter Thiel、Richard Mynott、Donna G. Blackmond
DOI:10.1021/ja052025+
日期:2005.7.1
based on BINOL-derived monodentate phosphites have resulted in an efficient and economically attractive preparative method, very little is known concerning the source of the unexpectedly high levels of enantioselectivity (ee often 90-99%). The present mechanistic study, which includes the NMR characterization of the precatalysts, kinetic measurements with focus on nonlinear effects, and DFT calculations