Synthesis 2023; 55(09): 1309-1321
DOI: 10.1055/a-2005-5006
short review

Advances in Exploring Cyclopentadienyl (Cp) Rhodium Catalysts Featuring Diastereotopic or Enantiotopic Cp Faces for Asymmetric C–H Activation

Xiaoqiang Yan
a   Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
b   Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
,
Jun Wang
a   Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
b   Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
› Author Affiliations
We thank the National Natural Science Foundation of China for financial support (21971263).


Abstract

Chiral cyclopentadienyl rhodium (CpRh) complexes have emerged as a class of powerful catalysts for enantioselective C–H activation reactions. In terms of Cp ligand development, the mainstream is to design chiral ligands with C 2 symmetry in order to avoid the problem of Cp face selectivity during their metalation with rhodium. In recent years, CpRh catalysts with diastereotopic or enantiotopic Cp faces were also revealed and successfully applied in asymmetric C–H activation. These advances are summarized in this short review together with perspectives for their future development.

1 Introduction

2 Cp Ligands with Diastereotopic Cp Faces

3 Cp Ligands with Enantiotopic Cp Faces

4 Conclusion and Outlook



Publication History

Received: 09 December 2022

Accepted after revision: 02 January 2023

Accepted Manuscript online:
02 January 2023

Article published online:
31 January 2023

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