Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 31886-57-4, Name is (S)-N,N-Dimethyl-1-ferrocenylethylamine, molecular formula is C14H19FeN, 31886-57-4, In a Article, authors is Oost£¬once mentioned of 31886-57-4
Synthesis of new derivatives of copper complexes of Josiphos family ligands for applications in asymmetric catalysis
A series of new copper complexes containing chiral ferrocenyl diphosphine ligands of the Josiphos family have been prepared. These complexes have been studied in the catalytic asymmetric 1,2-addition of Grignard reagents to enones and aromatic ketones. Variation of the electronic and steric properties of the ligand resulted in a positive effect in the regio- and enantioselectivity of Grignard reagents to alpha-H-substituted enones using the ligand in which tert-butyl substituents were introduced in the diarylphosphine moiety. The copper complexes were also successfully applied in the catalytic asymmetric conjugate addition of Grignard reagents to enoates. No increase of enantioselectivity was observed in the catalytic asymmetric addition of linear Grignard reagents, compared to that of the commercially available ligand rev-Josiphos. The Royal Society of Chemistry 2014.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.31886-57-4. In my other articles, you can also check out more blogs about 31886-57-4
Reference£º
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis