Copper(I)-Catalyzed Intramolecular<i>N</i>-<i>N</i>Coupling of Cyclopropyl<i>O</i>-Acyl Ketoximes: Synthesis of Spiro-fused Pyrazolin-5-ones
作者:Zhiguo Zhang、Junlong Li、Guoqing Huang、Kai Sun、Guisheng Zhang、Nana Ma、Qingfeng Liu、Tongxin Liu
DOI:10.1002/cjoc.201600479
日期:2016.12
A convenient copper‐catalyzed approach has been developed for the synthesis of substituted spiro‐fused pyrazolin‐5‐ones from readily available cyclopropyl O‐acyl ketoximes via an intramolecular NN bond formation reaction. These catalytic reactions proceed in excellent yields with a broad scope.
已经开发了一种方便的铜催化方法,用于通过分子内的NN键形成反应,从容易获得的环丙基O-酰基酮肟中合成取代的螺旋稠合的吡唑啉-5-酮。这些催化反应以宽范围的优异收率进行。