A Highly Stereoselective, Modular Route to (<i>E</i>)-Vinylsulfones and to (<i>Z</i>)- and (<i>E</i>)-Alkenes
作者:Marie-Gabrielle Braun、Béatrice Quiclet-Sire、Samir Z. Zard
DOI:10.1021/ja207944c
日期:2011.10.12
A recently discovered radical fragmentation of 2-fluoro-6-pyridinoxy derivatives allows a new highly stereoselective and convergent route to (E)-vinylsulfones from allylic alcohols. Reductive desulfonylation or nickel-catalyzed couplings furnish di- and trisubstituted (E)- and (Z)-alkenes.
最近发现的 2-氟-6-吡啶氧基衍生物的自由基断裂允许从烯丙醇到 (E)-乙烯基砜的新的高度立体选择性和收敛途径。还原性脱磺酰化或镍催化偶联提供二和三取代的 (E)- 和 (Z)- 烯烃。