Akshay S. Limaye, R. Thrilokraj, Shoyebmohamad F. Shaikh, Umesh A. Kshirsagar, Jan Grzegorz Małecki, Abdullah M. Al-Enizi, Pravin Y. Kogale, Ramesh B. Dateer
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Dual Role of Choline Azide for One-Pot Synthesis of Quinolines and Quinazolines Using Versatile Magnetic Cu-Oxalate@Fe3O4 Catalyst
The present study demonstrates biogenically synthesized copper-oxalate supported on iron oxide (Fe3O4) and its implementation for pharmaceutically important quinoline and quinazoline synthesis. The formation of a new catalyst was confirmed by Field emission scanning electron microscope (FE-SEM) and Brunauer–Emmett–Teller (BET) analysis that displayed a spherical shape with a surface area of 18.407 m2 g−1, and an active metal concentration of 12.02 w/w%. The dual role of choline azide as a green solvent as well as a nitrogen source is demonstrated and a series of quinoline and quinazoline derivatives were synthesized in good to excellent yield. Importantly, catalyst recyclability, mechanistic investigations, control experiments, and reaction economy highlight the importance of methodology.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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