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Cu-Catalyzed Synthesis of Fluoroalkylated Isoxazoles from Commercially Available Amines and Alkynes

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journal contribution
posted on 23.01.2018, 19:59 by Xiao-Wei Zhang, Wen-Li Hu, Suo Chen, Xiang-Guo Hu
A one-pot protocol for the construction of fluoroalkylated isoxazoles directly from commercially available amines and alkynes is described. The reaction is scalable, operationally simple, regioselective, mild, and tolerant of a broad range of functional groups. As such, it could be viewed as a “click synthesis” of fluoroalkylated isoxazoles. Preliminary mechanistic investigations reveal that the transformation involves an unprecedented Cu-catalyzed cascade sequence involving RfCHN2.

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