29949-64-2Relevant articles and documents
Ru(II)-Catalyzed Amination of Aryl Fluorides via η6-Coordination
Kang, Qi-Kai,Li, Yuntong,Lin, Yunzhi,Shi, Hang
, p. 3706 - 3711 (2020/03/11)
We developed a Ru/hemilabile-ligand-catalyzed nucleophilic aromatic substitution (SNAr) of aryl fluorides as the limiting reagents. Significant ligand enhancement was demonstrated by the engagement of both electron-rich and neutral arenes in the SNAr amination without using excess arenes. Preliminary mechanistic studies revealed that the nucleophilic substitution proceeds on a η6-complex of the Ru catalyst and the substrate, and the hemilabile ligand facilitates dissociation of products from the metal center.
Selective dehydrocoupling of phosphines by lithium chloride carbenoids
Molitor, Sebastian,Becker, Julia,Gessner, Viktoria H.
, p. 15517 - 15520 (2014/12/12)
The development of a simple, transition-metal-free approach for the formation of phosphorus-phosphorus bonds through dehydrocoupling of phosphines is presented. The reaction is mediated by electronically stabilized lithium chloride carbenoids and affords a variety of different diphosphines under mild reaction conditions. The developed protocol is simple and highly efficient and allows the isolation of novel functionalized diphosphines in high yields.
Synthesis of new serine-based phosphinooxazoline ligands and iridium complexes for asymmetric hydrogenations
Franzke, Axel,Voss, Felix,Pfaltz, Andreas
supporting information; experimental part, p. 4358 - 4363 (2011/08/03)
A series of serine-based phosphinooxazoline ligands was synthesized and the corresponding iridum complexes were successfully applied in the asymmetric hydrogenation of various unfunctionalized olefines and acetophenone-N-phenyl- imine. The results show that these new derivatives are useful substitutes for the standard tert-leucine-derived PHOX ligands.
