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Dual substitution reaction of heterocyclic N-oxides with (pentafluorophenyl)trimethylsilane and additional nucleophiles.a
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Reaction conditions: heterocyclic N-oxide (0.2 mmol), C6F5SiMe3 (1.5 equiv), KOt-Bu (3 equiv), 3Å MS, THF (c=0.1 M), at −20 °C under Ar for 50 min.
NaSPh (6 equiv) was added.
NaSC2H5 (6 equiv) was added.
