Vinyl thianthrenium tetrafluoroborate
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Reagent for vinylation, labeling, cyclopropanation, and aziridination


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Reagent for vinylation


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Λ4-Dibenzothiophen-5-imino-N-dibenzothiophenium triflate
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Reagent for synthesis of N-alkyl or N-aryl pyridinium salts, Zincke aldehydes

