Copper-catalyzed cycloaddition/coupling cascades utilizing azomethine imines and alkynes have been developed for the divergent synthesis of (Z)-alkenyl and alkynyl N,N′-bicyclic pyrazolidinones by varying the reaction conditions. The choice of inert or oxidative atmosphere plays a crucial role in determining the transformation pathways. These reactions have broad substrate scopes and mild conditions, making them potentially useful.

中文翻译：

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铜催化的偶氮甲嘧啶亚胺与炔烃的环加成/偶联反应用于 （Z）-烯基和炔基 N，N′-双环吡唑烷酮的发散合成


利用偶氮甲嘧啶亚胺和炔烃的铜催化环加成/偶联反应已被开发出来，用于通过改变反应条件来发散合成 （Z）-烯基和炔基 N，N′-双环吡唑烷酮。惰性或氧化气氛的选择在决定转化途径方面起着至关重要的作用。这些反应具有广泛的底物范围和温和的条件，使其具有潜在的用途。