21232-38-2Relevant academic research and scientific papers
Bicyclic Bridgehead Phosphoramidite-Based Hybrid Diphosphorus Ligands: Design, Synthesis, and Application in Catalytic Asymmetric Hydrogenation
Du, Hong-Quan,Hu, Xiang-Ping
supporting information, p. 7678 - 7682 (2021/10/12)
A strategy for chiral ligand design has been developed that allows for incorporation of an achiral bicyclic bridgehead phosphoramidite to generate a class of hybrid diphosphorus ligands for high activity and asymmetric control. Using this concept, a series of chiral phosphine-phosphoramidite ligands bearing the sole chirality at the ligand backbone have been prepared and successfully employed in the Rh-catalyzed asymmetric hydrogenation of 2-vinylanilides for the synthesis of optically active anilines bearing an ortho-tertiary benzylic stereocenter.
Branch-Selective and Enantioselective Iridium-Catalyzed Alkene Hydroarylation via Anilide-Directed C-H Oxidative Addition
Grélaud, Simon,Cooper, Phillippa,Feron, Lyman J.,Bower, John F.
supporting information, p. 9351 - 9356 (2018/08/07)
Tertiary benzylic stereocenters are accessed in high enantioselectivity by Ir-catalyzed branch selective addition of anilide ortho-C-H bonds across styrenes and α-olefins. Mechanistic studies indicate that the stereocenter generating step is reversible.
Design and synthesis of C2-symmetric N-heterocyclic carbene precursors and metal carbenoids
Albright, Abigail,Eddings, Daniel,Black, Regina,Welch, Christopher J.,Gerasimchuk, Nikolay N.,Gawley, Robert E.
, p. 7341 - 7351 (2011/11/06)
Chiral, C2-symmetric imidazolium and imidazolinium ions, as well as the corresponding copper- or silver-bound carbenoids, have been prepared. Structural study of these compounds by X-ray crystallography reveals a chiral pocket that surrounds th
