1372202-91-9Relevant academic research and scientific papers
Synthesis of Chiral-Bridged Atropisomeric Monophosphine Ligands with Tunable Dihedral Angles and their Applications in Asymmetric Suzuki–Miyaura Coupling Reactions
Xia, Wang,Li, Yongsu,Zhou, Zihong,Chen, Huixuan,Liang, Hao,Yu, Sifan,He, Xuefeng,Zhang, Yaqi,Pang, Jiyan,Zhou, Zhongyuan,Qiu, Liqin
, p. 1656 - 1662 (2017)
Precise chiral recognition was firstly realized in the construction of diastereomeric biaryl monophosphines by means of the substrate-directed asymmetric annulation reactions. A series of new chiral-bridged atropisomeric biphenyl monophosphine ligands with tunable dihedral angles was accordingly synthesized successfully without a resolution step being needed. Using these ligands, different kinds of axially chiral 1,1′-biaryl-2-phosphonates including the first reported quinolyl biaryl phosphonates were prepared in 42–97% yields with up to 96% ee via palladium-catalyzed asymmetric Suzuki coupling reactions. (Figure presented.).
P(O)R2-directed Pd-catalyzed C-H functionalization of biaryl derivatives to synthesize chiral phosphorous ligands
Hu, Rong-Bin,Wang, Hong-Li,Zhang, Hong-Yu,Zhang, Heng,Ma, Yan-Na,Yang, Shang-Dong
supporting information, p. 2071 - 2076 (2014/11/08)
Chiral phosphorus ligands have been widely used in transition metal-catalyzed asymmetric reactions. Herein, we report a new synthesis approach of chiral biaryls containing a phosphorus moiety using P(O)R 2-directed Pd-catalyzed C-H activation; the functionalized products are produced with good enantioselectivity.
Highly efficient synthesis of a class of novel chiral-bridged atropisomeric monophosphine ligands via simple desymmetrization and their applications in asymmetric suzuki-miyaura coupling reaction
Wang, Shouliang,Li, Jinjin,Miao, Tingting,Wu, Wenhao,Li, Qing,Zhuang, Yue,Zhou, Zhongyuan,Qiu, Liqin
supporting information; experimental part, p. 1966 - 1969 (2012/06/04)
A series of novel chiral-bridged atropisomeric monophosphine ligands were synthesized via convenient and simple pathways. The prepared ligands, especially for ligand 7d, were found to be highly effective in the Pd-catalyzed Suzuki-Miyaura coupling reactio
