Convenient synthesis of α-trifluoromethyl amines via aminofluoroalkylation of arenes with N-trimethylsilyl α-trifluoroacetaldehyde hemiaminal

Add time:07/18/2019    Source:sciencedirect.com

Aminofluoroalkylation of various heteroarenes or substituted benzenes with the N-trimethylsilyl hemiaminals, prepared from 1,1,1,3,3,3-hexamethyldisilazane and gaseous trifluoroacetaldehyde, smoothly underwent at room temperature in the presence of a Lewis acid. [(1-Aryl-2,2,2-trifluoro)ethyl]amines or bis[(1-aryl-2,2,2-trifluoro)ethyl]amines were afforded in moderate to high yields.

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