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Preparation of N-2-alkoxyvinylsulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
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Preparation of 211At-Labeled (Hetero)aryl Compounds from Triarylsulfonium and Dibenzothiophenium Salts

Clémence Maingueneau1, Romain Eychenne1,2, Jean-Francois Gestin1

  • 1Nantes Université, Inserm, CNRS, Université d'Angers, CRCI2NA, 44000 Nantes, France.

Organic Letters
|June 18, 2025
PubMed

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Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
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