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Pd(OTf)2·2H2O-catalyzed ortho-fluorination of triflamide-protected benzylamines is reported. The use of N-fluoro-2,4,6-trimethylpyridinium triflate as the F+ source and NMP as a promoter is crucial for this reaction. The conversion of triflamide into a wide range of synthetically useful functional groups makes this fluorination protocol broadly applicable in medicinal chemistry and synthesis.
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Wang et al. (2009) studied this question.
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