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Liu et al. Chem Synth 2023;3:22 https://dx.doi.org/10.20517/cs.2023.18 Page 7 of 9

-substituents on one of the arenes have been demonstrated to be powerful for providing asymmetric
discrimination. Further extension of this strategy for more broad applications is expected.

DECLARATIONS
Acknowledgments
We thank Dr. Herman H. Y. Sung for his help in structure elucidation by X-ray crystallography.

Authors’ contributions
Designing the experiments, writing the manuscript, and being responsible for the whole work: Sun JW, Li
PF
Performing the experiments and synthesizing the substrates: Liu C, Li ZY

Availability of data and materials
Detailed experimental procedures and spectroscopic data were published as Supplementary Materials in the
journal.

Financial support and sponsorship
Financial support was provided by the National Natural Science Foundation of China (22271242), the
Science Technology and Innovation Committee of Shenzhen Municipality (JCYJ20200109141408054), the
Hong Kong Research Grants Council (C6012-21G, 16303420, 16309321, 16309722, and 16304322) and
Innovation and Technology Commission (ITC-CNERC14SC01) for funding support.

Conflicts of interest
All authors declared that there are no conflicts of interest.

Ethical approval and consent to participate
Not applicable.

Consent for publication
Not applicable.

Copyright
© The Author(s) 2023.

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