Enantioselective Pd(II)-Catalyzed Intramolecular Oxidative 6-<i>endo</i> Aminoacetoxylation of Unactivated Alkenes
作者:Xiaoxu Qi、Chaohuang Chen、Chuanqi Hou、Liang Fu、Pinhong Chen、Guosheng Liu
DOI:10.1021/jacs.8b03767
日期:2018.6.20
A novel asymmetric 6-endo aminoacetoxylation of unactivated alkenes by palladium catalysis, which yields chiral β-acetoxylated piperidines with excellent chemo-, regio- and enantioselectivities under very mild reaction conditions, has been established herein by employing a new designed pyridine-oxazoline (Pyox) ligand. Importantly, introducing a sterically bulky group into the C-6 position of Pyox
通过钯催化的未活化烯烃的新型不对称 6-内氨基乙酰氧基化,在非常温和的反应条件下产生具有优异化学选择性、区域选择性和对映选择性的手性 β-乙酰氧基化哌啶,本文已通过使用新设计的吡啶-恶唑啉(Pyox ) 配体。重要的是,在 Pyox 的 C-6 位置引入空间庞大的基团对于增强烯烃氨基乙酰氧基化的反应性至关重要。