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The syntheses of the three selenenium cations 17–19 derived from N‐[n‐butyl‐(3‐nitrobenzylimino)]phenyl selenide (14) are described. Precursor 14 was synthesized by treating N‐(2‐bromo‐3‐nitrobenzylimino)benzene (12) with in situ generated nBuSeNa. The selenenium cation 17 with chloride as counteranion was isolated when 14 was treated with sulfuryl chloride (SO2Cl2) in the presence of triethylamine...
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