An Efficient Catalytic Method for the C-N Acylation of Heterocycles by Schiff Base Co(II), Ni(II), Cu(II) and Zn(II) Transition Metal Complexes,Letters in Organic Chemistry

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An Efficient Catalytic Method for the C-N Acylation of Heterocycles by Schiff Base Co(II), Ni(II), Cu(II) and Zn(II) Transition Metal Complexes
Letters in Organic Chemistry ( IF 0.7 ) Pub Date : 2021-07-31 , DOI: 10.2174/1570178617999200922150741
Sujit Hegade ₁ , Gautam Gaikwad ₁ , Yuvraj Jadhav ₁ , Sanjay Chavan ₂ , Ganpatrao Mulik ₃

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The catalytic activity of Schiff base Co(II), Ni(II), Cu(II) and Zn(II) transition metal complexes was tested for N-Acylation of heterocycles with acetyl chloride. It is observed that all the complexes worked as efficient catalysts. The structural type of complexes was studied by an Xray powder diffractogram (XRD). The mixed ligand complexes with PPh₃ ligand show greater activity as compared to Phen complexes and Schiff base complexes. Especially complex [Ni(L)(PPh₃)₂Cl₂] efficiently worked as a catalyst because of high thermal stability (TGA-DSC) and large catalytic surface area (BET).

中文翻译：

希夫碱 Co(II)、Ni(II)、Cu(II) 和 Zn(II) 过渡金属配合物对杂环 CN 酰化的有效催化方法

测试了席夫碱 Co(II)、Ni(II)、Cu(II) 和 Zn(II) 过渡金属配合物的催化活性，用于杂环与乙酰氯的 N-酰化。观察到所有配合物都作为有效的催化剂起作用。通过X射线粉末衍射图（XRD）研究配合物的结构类型。与 Phen 配合物和席夫碱配合物相比，具有 PPh ₃配体的混合配体配合物显示出更高的活性。特别是复合物 [Ni(L)(PPh ₃ ) ₂ Cl ₂ ] 具有高热稳定性 (TGA-DSC) 和大催化表面积 (BET)，因此可以有效地用作催化剂。

更新日期：2021-07-01

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