Volume 60, Issue 16 pp. 8827-8831
Communication

Enantioselective Reductive Cyanation and Phosphonylation of Secondary Amides by Iridium and Chiral Thiourea Sequential Catalysis

Dong-Huang Chen

Dong-Huang Chen

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

These authors contributed equally to this work.

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Wei-Ting Sun

Wei-Ting Sun

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

These authors contributed equally to this work.

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Cheng-Jie Zhu

Cheng-Jie Zhu

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

These authors contributed equally to this work.

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Guang-Sheng Lu

Guang-Sheng Lu

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

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Dong-Ping Wu

Dong-Ping Wu

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

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Dr. Ai-E Wang

Corresponding Author

Dr. Ai-E Wang

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, Gansu China

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Prof. Dr. Pei-Qiang Huang

Corresponding Author

Prof. Dr. Pei-Qiang Huang

Department of Chemistry and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005 Fujian, China

State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, Gansu China

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First published: 22 January 2021
Citations: 65

Graphical Abstract

The first enantioselective reductive cyanation and phosphonylation of secondary amides have been achieved by the combination of iridium with chiral thiourea catalysis. The protocol is highly efficient and enantioselective, providing a novel route for the synthesis of optically active α-aminonitriles and α-aminophosphonates from bench-stable feedstocks.

Abstract

The combination of transition-metal catalysis and organocatalysis increasingly offers chemists opportunities to realize diverse unprecedented chemical transformations. By combining iridium with chiral thiourea catalysis, direct enantioselective reductive cyanation and phosphonylation of secondary amides have been accomplished for the first time for the synthesis of enantioenriched chiral α-aminonitriles and α-aminophosphonates. The protocol is highly efficient and enantioselective, providing a novel route to the synthesis of optically active α-functionalized amines from the simple, readily available feedstocks. In addition, the reactions are scalable and the thiourea catalyst can be recycled and reused.

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