A nitrogen doped carbon supported cobalt catalyzed efficient synthesis of imines and quinoxaline motifs is reported. Co(OAc)₂-Phen/Carbon-800 (Co-phen/C-800) showed the superior reactivity compared to other materials prepared at different temperature, in the synthesis of quinoxalines by the coupling between diamines and diols. Moreover, applying the transfer hydrogenation and acceptorless dehydrogenative coupling strategy, imines and quinoxaline derivatives were synthesized from the nitro compounds. The practical applicability of this protocol was demonstrated by the gram-scale synthesis and the reusability of the catalyst up to 8th cycle. Furthermore, several kinetic experiments were carried out to realize the probable mechanism.

报道了氮掺杂的碳负载的钴催化的亚胺和喹喔啉基序的有效合成。与在不同温度下制备的其他材料相比，Co（OAc）_2-苯/碳800（Co-phen / C-800）在通过二胺和二醇之间的偶联合成喹喔啉中显示出优异的反应活性。此外，应用转移氢化和无受体脱氢偶联策略，由硝基化合物合成了亚胺和喹喔啉衍生物。该方案的实际适用性已通过克级合成和高达第8个循环的催化剂可重复使用性证明。此外，进行了一些动力学实验以实现可能的机理。