Copper-catalyzed one-pot synthesis of 2-(2,2,2-trifluoroethyl)-substituted benzofused heterocycles
Literature Information
Wei Wu, Beibei Luo, Yi You, Zhiqiang Weng
A novel synthesis approach for the construction of 2-trifluoroethyl-substituted benzofurans under copper-catalyzed conditions has been developed. The reaction of salicylaldehyde p-tosylhydrazones with 2-bromo-3,3,3-trifluoropropene proceeded through a sequential process to afford products in moderate to excellent yields (up to 93%). This method is also applicable to the formation of 2-trifluoroethylated indoles.
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Organic Chemistry Frontiers

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![(1R)-3-Bromo-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one structure (1R)-3-Bromo-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one structure](https://static.chemtradehub.com/structs/102/10293-06-8-dd8a.webp)


