首页 | 本学科首页   官方微博 | 高级检索  
     


Enantioselective Synthesis of Biaryl Atropisomers by Pd‐Catalyzed C−H Olefination using Chiral Spiro Phosphoric Acid Ligands
Authors:Jun Luo  Tao Zhang  Lei Wang  Gang Liao  Qi‐Jun Yao  Yong‐Jie Wu  Bei‐Bei Zhan  Yu Lan  Xu‐Feng Lin  Bing‐Feng Shi
Abstract:The discovery of proper ligands to simultaneously modulate the reactivity and effectively control the stereoselectivity is a central topic in the field of enantioselective C?H activation. Herein, we reported the synthesis of axially chiral biaryls by Pd‐catalyzed atroposelective C?H olefination. A novel chiral spiro phosphoric acid, STRIP, was identified as a superior ligand for this transformation. A broad range of axially chiral quinoline derivatives were synthesized in good yields with excellent enantioselectivities (up to 98 % ee). Density functional theory was used to gain a theoretical understanding of the enantioselectivities in this reaction.
Keywords:Atropselektivitä  t  C-H-Olefinierung  Chinolinbiaryle  Chirale Spirophosphorsä  uren  Palladium
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号