Nitrogen-doped carbon-supported Co/Cu bimetallic catalysts were found to catalyze olefination of aldehydes with ethyl diazoacetate. In the presence of triaryl phosphine with electron-withdrawing groups, various aromatic aldehydes could be converted into unsaturated esters in good to high yields. The system is heterogeneous, allowing for recovery and reuse of the catalyst for several runs without significant loss of activity.

中文翻译：

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掺氮碳负载金属催化重氮乙酸乙酯烯烃烯烃

发现氮掺杂的碳负载 Co/Cu 双金属催化剂可催化醛与重氮乙酸乙酯的烯化。在具有吸电子基团的三芳基膦存在下，各种芳香醛可以以良好或高产率转化为不饱和酯。该系统是非均相的，允许在多次运行中回收和重复使用催化剂而不会显着损失活性。