A Novel Route to 2-Arylquinolines: Reductive Cleavage of 2′-Nitroaryl-∆2-isoxazolines
作者:Mukul Lal、Prashantha Kamath、Russell Viner、Stephen Smith
DOI:10.1055/s-0036-1588751
日期:2017.7
A novel synthetic route for the synthesis of quinolines starting from Δ2-isoxazolines under reductive conditions is reported. The reductive cyclization to quinolines is achieved under both metal and metal-free conditions. The reaction proceeds via an intramolecular N–H···O hydrogen bond intermediate, accelerating the reductive cleavage 1000-fold (DFT calculations) in comparison with non-hydrogen bonded
报道了一种在还原条件下以 Δ2-异恶唑啉为原料合成喹啉的新合成路线。在金属和无金属条件下均可实现还原环化为喹啉。该反应通过分子内 N-H···O 氢键中间体进行,与非氢键系统相比,还原裂解加速了 1000 倍(DFT 计算)。