Volume 137, Issue 8 e202422944
Zuschrift

Synthesis of γ-Amino Amides by Iridium-Catalyzed Enantioselective Hydroamination of Internal Alkenes Directed by an Amide

Yu-Wen Sun

Yu-Wen Sun

Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Xin Sun

Xin Sun

Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Hao-Tian Tan

Hao-Tian Tan

Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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Prof. Dr. Bi-Jie Li

Corresponding Author

Prof. Dr. Bi-Jie Li

Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084 China

Stake Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032 China

Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084 China

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First published: 16 December 2024

Abstract

Catalytic regio- and enantioselective hydroamination of less activated internal alkenes presents a challenge to synthetic chemists due to their low reactivity and the difficulty in simultaneously controlling regio- and enantioselectivities. Here, we report an iridium-catalyzed enantioselective hydroamination of internal alkenes directed by an amide. The amide group on the alkene effectively directs the catalyst to overcome the low reactivity and control the regioselectivity and the enantiotopic face selection. Phthalimide serves as the amination agent, which could be readily removed to afford a primary amine. This coordination assistance enables hydroamination to occur selectively at the remote position with up to 97 % ee, delivering valuable enantio-enriched γ-amino acid derivatives that are otherwise challenging to access.

Data Availability Statement

The data that support the findings of this study are available in the Supporting Information of this article.

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