Chinese Journal of Organic Chemistry ›› 2022, Vol. 42 ›› Issue (10): 3102-3117.DOI: 10.6023/cjoc202210010 Previous Articles     Next Articles

Special Issue: 不对称催化专辑

手性螺环双氮配体在过渡金属催化中的应用进展

胡旭东, 张鑫亮, 刘文博   

  1. 武汉大学化学与分子科学学院 武汉 430072
  • 收稿日期:2022-10-12 修回日期:2022-10-20 发布日期:2022-11-02

Advances of Chiral Spiro Skeleton-Based Bisnitrogen Ligands in Transition-Metal Catalysis

Xudong Hu, Xinliang Zhang, Wenbo Liu   

  1. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072
  • Received:2022-10-12 Revised:2022-10-20 Published:2022-11-02

Chiral spiro skeletons are recognized as a class of “privileged structures” of ligands. Studies toward these spiro ligands have significantly advanced the field of asymmetric catalysis. Bisnitrogen ligands bearing chiral spiro skeletons are reviewed and categorized according to the type of spirocyclic skeletons, including spiro[4.4]nonane-based bis(isoxazoline) ligands (SPRIX), spirobiindane-based bis(oxazoline) ligands (SpiroBox), spirobi(chroman)-based bis(amine) or bis(oxazoline) ligands (SPANamine or SPANBox), and spirocyclic pyrrolidine oxazoline ligands (SPDO). The synthesis and application of these four types of ligands and their applications in transition-metal catalysis are discussed in detail. Compared with the powerful and widely utilized chiral sprio phosphine ligands, the availability and application of spiro bisnitrogen ligands are relatively limited. Nevertheless, their features such as stability under acidic conditions and/or in the presence of an oxidant, superior capability of catalyzing carbene insertion into heteroatom-hydrogen bonds, provide insights and inspirations to the development of novel catalytic systems in asymmetric synthesis.

Key words: chiral spiro ligands, bisnitrogen ligands, asymmetric synthesis, transition-metal catalysis