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.

中文翻译：

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双环桥头亚磷酰胺基杂化二磷配体：催化不对称加氢的设计、合成和应用

已经开发了一种手性配体设计策略，该策略允许掺入非手性双环桥头亚磷酰胺以生成一类用于高活性和不对称控制的杂化二磷配体。利用这一概念，制备了一系列在配体骨架上具有唯一手性的手性膦-亚磷酰胺配体，并成功地用于 Rh 催化的 2-乙烯基苯胺不对称氢化，以合成带有邻叔苄基的旋光苯胺。立体中心。