Synlett
DOI: 10.1055/a-2550-1635
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Organocatalytic Asymmetric X–H Insertion Reactions of α-Carbonyl Sulfonium Ylides, Sulfoxonium Ylides, and Sulfonium Salts

Ruifeng Hu
a   School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. of China
,
Chun-Bao Miao
a   School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. of China
,
Wengang Guo
a   School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. of China
,
Jianwei Sun
a   School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. of China
b   Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, P. R. of China
› Author Affiliations
We thank the National Natural Science Foundation of China (22271242, 22471232), the Hong Kong Research Grants Council (C6012-21G, 16304322, 16309722, 16309023) and Innovation and Technology Commission (ITC-CNERC14SC01) and Changzhou University for financial support.


Abstract

Since their initial discovery by Ingold and Jessop in 1930, sulfur ylides have been recognized as a highly versatile class of compounds in organic synthesis. Their reactivity, which closely resembles that of diazo compounds, has enabled them to serve as valuable surrogates for safe and stable carbene precursors, offering unique advantages in large-scale syntheses. However, compared to diazo compounds, the catalytic asymmetric reactions involving sulfur ylides, whether as substrates or intermediates, remain relatively underexplored. In this account, we mainly summarize our recent advancements in this area, focusing particularly on their applications in organocatalytic asymmetric X–H (X = N, N3, Cl, and C) insertion reactions. These reactions typically involve enantio-determining and rate-determining C–X bond formation in combination with dynamic kinetic resolution, thus leading to both high chemical efficiency and enantiocontrol.

1 Introduction

2 S–H Insertion Reactions of Sulfoxonium Ylides

3 N–H Insertion Reactions of Sulfonium Ylides

4 N–H Insertion Reactions of Sulfoxonium Ylides

5 One-Pot Sequential Ylide Formation and N–H insertion Reactions

6 N3–H Insertion Reactions of Sulfoxonium Ylides

7 Chlorination of Sulfonium Salts

8 C–H Insertion Reactions of Sulfoxonium Ylides

9 Conclusion and Outlook



Publication History

Received: 21 January 2025

Accepted after revision: 03 March 2025

Accepted Manuscript online:
03 March 2025

Article published online:
15 May 2025

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