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|Type:||Artigo de periódico|
|Title:||Gaseous Sf(3)(+): An Efficient Electrophilic Monofluorinating Agent For Five-membered Heteroaromatic Compounds|
|Abstract:||Reactions of gaseous SF(3)(+) ions with furan, thiophene, pyrrole, and several of their alkyl derivatives were performed via MS(2) experiments and found to occur readily both by electron abstraction and F(+) transfer. Then, by performing MS(3) experiments, the F(+) transfer products-the protonated monofluorinated molecules-were mass-selected and deprotonated by a second reaction with a stronger base. F(+) transfer from gaseous SF(3)(+) followed by deprotonation promotes therefore C-H by C-F replacement in five-membered heteroaromatic compounds and the efficient gas-phase synthesis of their neutral monofluorinated derivatives.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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