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Palladium-Catalyzed Fluorination of Cyclic Vinyl Triflates: Effect of TESCF

Author(s)
Ye, Yuxuan; Takada, Takashi; Buchwald, Stephen Leffler
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Abstract
A method for the palladium-catalyzed fluorination of cyclic vinyl triflates has been developed. As with several previous palladium-catalyzed fluorination reactions using fluoride salts, controlling the regioselectivity presented a challenge in developing a practical synthetic procedure. The addition of triethyl(trifluoromethyl)silane (TESCF[subscript 3]) was found to effectively address this problem and resulted in drastically improved regioselectivities in this palladium-catalyzed fluorination reaction. This discovery, along with the use of a new biarylphosphine ligand, allowed for the development of an efficient and highly regioselective protocol for the fluorination of vinyl triflates. This method is compatible with a range of sensitive functional groups and provides access to five-, six-, and seven-membered cyclic vinyl fluorides.
Date issued
2016-12
URI
http://hdl.handle.net/1721.1/113042
Department
Massachusetts Institute of Technology. Department of Chemistry
Journal
Angewandte Chemie International Edition
Publisher
Wiley-Blackwell
Citation
Ye, Yuxuan et al. “Palladium-Catalyzed Fluorination of Cyclic Vinyl Triflates: Effect of TESCF3as an Additive.” Angewandte Chemie International Edition 55, 50 (November 2016): 15559–15563 © 2016 Wiley-VCH Verlag GmbH & Co
Version: Author's final manuscript
ISSN
1433-7851
1521-3773

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