Photocatalytic Radical Trifluoromethylation/Cyclization Cascade: Synthesis of CF3-Containing Pyrazolines and Isoxazolines
2015
Wei, Qiang | Chen, Jia-Rong | Hu, Xiao-Qiang | Yang, Xiao-Chen | Lü, Bin | Xiao, Wen-Jing
A general visible light induced photoredox-catalyzed radical trifluoromethylation/cyclization cascade of β-aryl-β,γ-unsaturated hydrazones and oximes is described. The protocol enables an efficient access to various densely functionalized and biologically important CF₃-containing dihydropyrazoles and isoxazolines with generally high yields.
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