Aromatic Cations from Oxidative Carbon–Hydrogen Bond Cleavage in Bimolecular Carbon–Carbon Bond Forming Reactions
作者:Dane J. Clausen、Paul E. Floreancig
DOI:10.1021/jo301185h
日期:2012.8.3
with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) to form persistent aromatic oxocarbenium ions through oxidative carbon–hydrogen cleavage. This process is tolerant of electron-donating and electron-withdrawing groups on the benzene ring and additional substitution on the pyran ring. A variety of nucleophiles can be added to these cations to generate a diverse set of structures.
Chromenes 和异色烯与 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) 快速反应,通过氧化碳氢裂解形成持久的芳香族氧代碳鎓离子。该过程容忍苯环上的给电子和吸电子基团以及吡喃环上的额外取代。可以将各种亲核试剂添加到这些阳离子中以生成多种结构。