Intramolecular Anodic Olefin Coupling Reactions: Use of the Reaction Rate To Control Substrate/Product Selectivity
作者:Hai-Chao Xu、Kevin D. Moeller
DOI:10.1002/anie.201003924
日期:2010.10.18
out—it's a trap! The anodic coupling of olefins with amine trapping groups to form proline and pipecolic acid derivatives with a quaternary α carbon atom (see scheme) was successful despite the significantly lower oxidation potential of the product relative to that of either functional group in the substrate: owing to the very fast cyclization, the oxidation potential of the substrate is lower than that
当心——这是一个陷阱!烯烃与胺捕获基团的阳极偶联形成具有季 α 碳原子的脯氨酸和哌可酸衍生物(见方案)是成功的,尽管产物的氧化电位相对于底物中任一官能团的氧化电位显着降低:由于环化速度极快,底物的氧化电位低于产物的氧化电位。Ts=对甲苯磺酰基。