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Asymmetric S ‐Arylation of Sulfenamides to Access Axially Chiral Sulfilimines Enabled by Anionic Stereogenic‐at‐Cobalt(III) Complexes

Year: 2024
Type: article
Abstract: An efficient enantioselective coupling reaction between sulfenamides and cyclic diaryliodonium salts is established via adaptive Cu/anionic stereogenic-at-Co(III) complex combined catalysis, precisely synthesizing a broad range of axially chiral sulfilimines with excellent enantioselectivities, diastereoselectivities, regioselectivities, and chemoselectivities (67 examples under same conditions, up to 98 % ee). The following thermodynamically controlled pyramidal inversion enables efficient stereodivegent synthesis of all four stereoisomers. Mechanistic studies suggest that anionic stereogenic-at-cobalt(III) complexes serve as counteranions of diaryliodonium and anionic ligand of Cu(I) catalyst simultaneously, which could be regarded as an explanation for outstanding selectivities.
Authors: Wei Fang, Yan‐Dong Meng, Shu‐Ying Ding, Ju‐Yan Wang, Zheng‐Hao Pei, Meng‐Lan Shen, Chuan‐Zhi Yao, Qiankun Li, Zhenhua Gu, Jie Yu, Hua‐Jie Jiang
Language: English
Field: Chemistry
Open Access status: bronze
OpenAlex ID: W4404964379
FWCI: 8.328
Cites: 94
Cited by: 60
Related to: 10