Improved Syntheses of Phosphine Ligands by Direct Coupling of Diarylbromophosphine with Organometallic Reagents
作者:Lei Liu、Hai-Chen Wu、Jin-Quan Yu
DOI:10.1002/chem.201101467
日期:2011.9.19
crucial for their direct coupling with binaphthylmagnesium bromide or BINOL triflate. This finding has led to an improved preparation of both electron‐deficient BINAP‐type phosphineligands and several important Buchwald'sligands.
Dissymmetrically Substituted Diphosphines with Two Atropisomeric Axes and Their Application in Asymmetric Hydrogenation of Imines
作者:Gaspard Hedouin、Racha Abed Ali Abdine、Quentin Dherbassy、Christophe Michon、Ignacio Funes‐Ardoiz、Françoise Colobert、Joanna Wencel‐Delord
DOI:10.1002/adsc.202300527
日期:2023.6.20
diphosphine ligandsused in asymmetriccatalysis are C2-symmetric and their structural modifications are often limited. Herein, we reported the design of original enantiopure dissymmetrical diphosphines, BiaxPhos, bearing two atropisomeric axes. Their original chiral architecture combined with important modularity, renders BiaxPhos ligands appealing candidates for asymmetriccatalysis, as illustrated