Volume 43, Issue 3 pp. 255-260
Concise Report

Enabling Access to 3-gem-Difluorovinyl Lactams via Zn-Mediated Sequential Single Electron Reductive Hydrodehalogenation

Jia Zheng

Jia Zheng

The Marine Biomedical Research Institute, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong, 524023 China

The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong, 524023 China

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Xuran Liu

Xuran Liu

The Marine Biomedical Research Institute, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong, 524023 China

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Jiawen Yin

Jiawen Yin

The Marine Biomedical Research Institute, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong, 524023 China

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Shuaikang Li

Shuaikang Li

The Marine Biomedical Research Institute, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong, 524023 China

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Juanjuan Zhang

Juanjuan Zhang

The Marine Biomedical Research Institute, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong, 524023 China

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Weigao Hu

Corresponding Author

Weigao Hu

The Marine Biomedical Research Institute, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong, 524023 China

The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong, 524023 China

E-mail: [email protected]Search for more papers by this author
First published: 17 October 2024
Citations: 1

Comprehensive Summary

Herein, we describe a direct route for the synthesis of 3-gem-difluorovinyl lactams through Zn-mediated reductive hydrodehalogenation. Importantly, by using inexpensive deuterium oxide (D2O), the high value-added vicinal dideuterated gem-difluoroalkenes with excellent deuterium (D) incorporation were prepared. Mechanism studies indicated a successive single electron transfer process: the reaction initially undergoes hydrodechlorination to give the intermediate α-trifluoromethylidene lactams, which are then activated by the in-situ generated zinc cations and reduced to the desired product via hydrodefluorination.

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