Abstract
An efficient preparation of 1‐[79Br]bromo‐2‐fluoroethylene, [79Br]BrHC˭CHF, was carried out by a three‐step procedure: (a) natural 1‐bromo‐2‐fluoroethylene, BrHC˭CHF, was iodinated to 1‐fluoro‐2‐iodoethylene, FHC˭CHI; (b) 1‐fluoro‐2‐iodoethylene was 79Br2‐brominated to 1,2‐di[79Br]bromo‐1‐fluoro‐2‐iodoethane, [79Br]BrFCHCH[79Br]BrI; and (c) 1,2‐di[79Br]bromo‐1‐fluoro‐2‐iodoethane was dehalogenated to 1‐[79Br]bromo‐2‐fluoroethylene, [79Br]BrHC˭CHF. The yield of isolated product, on a 2‐mmol scale, was 62% with respect to 79Br2.
Acknowledgments
The authors thank Lucio Ronchin and Francesco Pinna (Dipartimento di Chimica, Università Ca' Foscari di Venezia) for their help with GC and Maurizio Selva (Dipartimento di Scienze Ambientali, Università Ca' Foscari di Venezia) for his help with GC/MS spectra. Daniela Baldan is also acknowledged for her valuable aid in the article preparation.