Organosulfur Functionality as an Alternative Enantiocontrollable Coordinating Element in Chiral Phosphine Ligands for Palladium-Catalyzed Asymmetric Allylic Alkylations
作者:Kunio Hiroi、Yoshio Suzuki、Ikuko Abe
DOI:10.1246/cl.1999.149
日期:1999.2
The synthesis of (S)-proline-derived phosphines bearing organosulfur groups and the use of them as chiral ligands in palladium-catalyzed asymmetric allylic alkylations were accomplished successfully. The mechanism is discussed on the basis of the stereochemical results, presumably by participation of organosulfur groups as alternative enantiocontrollable coordinating elements.
(S)-脯
氨酸衍生的带有有机
硫基团的膦的合成以及将它们用作
钯催化的不对称烯丙基烷基化中的手性
配体已成功完成。该机制是根据立体
化学结果讨论的,推测是通过有机
硫基团作为替代的对映可控配位元素的参与。