Issue 10, 2021

Catalytic asymmetric synthesis of monofluoroalkenes and gem-difluoroalkenes: advances and perspectives

Abstract

Driven by the continuous demand for optically active fluoro-containing molecules from the chemical society, the field of fluorochemistry has emerged as a hot topic recently. While protocols focusing on catalytic asymmetric fluorination, (di)fluoroalkylation, and trifluoromethylation have been well developed, elegant strategies for the synthesis of enantioenriched monofluoro- and gem-difluoroalkenes remain highly sought after. As two vital subunits of organofluorides, both monofluoro- and gem-difluoroalkenes are pervasive within many biologically active molecules. They serve as the mimics of alkenyl, enol, and peptide bonds and the carbonyl group, respectively, which may enhance the bioactivities of the parent molecules. In addition, they are active handles for the construction of other fluorinated molecules. In this review, insightful discussions on the latest achievements of the catalytic asymmetric strategies associated with the facile synthesis of both monofluoro- and gem-difluoroalkenes are provided. The related mechanism considerations, applications in streamlining syntheses, limitations, and the opportunities of the state-of-the-art methodologies will be highlighted. We hope that this will trigger novel ideas, helping in pushing current frontiers further.

Graphical abstract: Catalytic asymmetric synthesis of monofluoroalkenes and gem-difluoroalkenes: advances and perspectives

Article information

Article type
Review Article
Submitted
24 Dec. 2020
Accepted
07 Apr. 2021
First published
08 Apr. 2021

Org. Chem. Front., 2021,8, 2315-2327

Catalytic asymmetric synthesis of monofluoroalkenes and gem-difluoroalkenes: advances and perspectives

X. Zhang, Y. Cheng, X. Zhao, Z. Cao, X. Xiao and Y. Xu, Org. Chem. Front., 2021, 8, 2315 DOI: 10.1039/D0QO01630F

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