Kuczmera Thomas J, Dietz Annalena, Boelke Andreas, Nachtsheim Boris J
Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany.
Beilstein J Org Chem. 2023 Mar 16;19:317-324. doi: 10.3762/bjoc.19.27. eCollection 2023.
A systematic investigation of imidazo- and pyrazoloiodazinium salts is presented. Besides a robust synthetic protocol that allowed us to synthesize these novel cyclic iodonium salts in their mono- and dicationic forms, we gained in-depth structural information through single-crystal analysis and demonstrated the ring opening of the heterocycle-bridged iodonium species. For an exclusive set of dicationic imidazoiodaziniums, we show highly delicate post-oxidation functionalizations retaining the hypervalent iodine center.
本文对咪唑并和吡唑并碘嗪鎓盐进行了系统研究。除了一种强大的合成方法，使我们能够以单阳离子和双阳离子形式合成这些新型环状碘鎓盐外，我们还通过单晶分析获得了深入的结构信息，并证明了杂环桥连碘鎓物种的开环。对于一组独特的双阳离子咪唑并碘嗪鎓盐，我们展示了保留高价碘中心的高度精细的后氧化官能团化反应。
