Substituent changes in the salen ligands of CuᴵᴵNaᴵ-complexes to induce various structures and catalytic activities towards 2-imidazolines from nitriles and 1,2-diaminopropane
2019
LiThese authors contributed equally., Quan-Quan | He, Peng-Xiu | Zhang, Jin | Zhang, Ji-Dong | Xin, Yu-Meng | Liu, Ping | Wang, Yao-Yu | Li, Jian-Li
Based on various comparable salen ligands, three synthesized CuᴵᴵNaᴵ-complexes present efficient catalytic activities for the coupling and cyclization reaction of 1,2-diaminopropane with nitriles towards 2-imidazolines. The catalytic results show that salen ligands with an electron-donating substituent and small steric hindrance improve the catalytic activity.
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