Volume 42, Issue 11 pp. 1230-1236
Concise Report

Visible-Light-Mediated Photocatalyst-Free Hydroacylation of Azodicarboxylic Acid Derivatives with 4-Acyl-1,4-dihydropyridines

Li Liu

Li Liu

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

Sinopec Beijing Research Institute of Chemical Industry, Beijing, 100013 China

The authors contributed equally.

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Jing Wang

Jing Wang

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

The authors contributed equally.

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Xiaoying Feng

Xiaoying Feng

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

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Kun Xu

Kun Xu

Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124 China

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Wei Liu

Wei Liu

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

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Xia Peng

Xia Peng

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

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Hongguang Du

Corresponding Author

Hongguang Du

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

E-mail: [email protected]; [email protected]Search for more papers by this author
Jiajing Tan

Corresponding Author

Jiajing Tan

Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029 China

E-mail: [email protected]; [email protected]Search for more papers by this author
First published: 05 February 2024
Citations: 9

Comprehensive Summary

A visible-light-enabled, photocatalyst-free hydroacylation reaction of azodicarboxylic acid derivatives was described. This radical conjugate addition (RCA) protocol relied on the dual role of 4-acyl-1,4-dihydropyridine (acyl-DHP) reagents that besides being as radical reservoirs, they also enabled the conversion of radical adducts to anion intermediates via reduction. Under “catalyst-oxidant-additive free” conditions, a wide range of structurally different acyl hydrazide products were readily obtained in 56%—99% yields. The utility of this transformation was further demonstrated by the scale-up synthesis and downstream derivatization.

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