An efficient copper‐catalyzed carbocyclization of silyl enol ether tethered ynamides has been developed, allowing rapid and practical construction of diverse 2‐azabicyclo[3.2.0] compounds in generally good to excellent yields with broad substrate scope under mild reaction conditions. Importantly, this protocol not only constitutes a rare example of non‐noble metal‐catalyzed alkyne carbocyclization
已开发出一种有效的
铜催化的甲
硅烷基烯醇醚系链的酰胺酰胺的碳环化方法,可以在温和的反应条件下快速,实用地构建各种具有良好收率的优异的
2-氮杂双环[3.2.0]化合物,并具有良好的收率。重要的是,该方案不仅构成了非贵
金属催化的
炔烃碳环化的罕见例子,而且还代表了π链状酰胺的β位上的罕见环化反应。还出现了通过动力学拆分进行不对称碳环化的可能性。