Solvent-free and efficient synthesis of imidazo[1,2-a]pyridine derivatives via a one-pot three-component reaction

2012 ◽  
Vol 14 (3) ◽  
pp. 707 ◽  
Author(s):  
Li-Rong Wen ◽  
Zhao-Rui Li ◽  
Ming Li ◽  
Han Cao
2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Zahed Karimi-Jaberi ◽  
Marziyeh Jokar ◽  
S. Zoleykha Abbasi

Two efficient and direct procedures have been developed for the preparation of 1-amidoalkyl-2-naphthols by a one-pot condensation of aldehydes, 2-naphthol, and amides in the presence of trichloroacetic acid or cobalt (II) chloride as catalyst. The reactions were carried out under solvent-free media. High yields, short reaction times, easy workup of the catalyst are advantages of these procedures.


2017 ◽  
Vol 41 (8) ◽  
pp. 455-456 ◽  
Author(s):  
Rahele Zhiani

A green and efficient synthesis of 1,2,4-triazole-3-selenones has been achieved via a three-component, one-pot condensation of benzohydrazide, potassium selenocyanate and acyl chlorides under solvent-free conditions at ambient temperature with good yields.


2019 ◽  
Vol 19 (2) ◽  
pp. 265-275 ◽  
Author(s):  
Faeze Khalili ◽  
Sara Akrami ◽  
Malihe Safavi ◽  
Maryam Mohammadi-Khanaposhtani ◽  
Mina Saeedi ◽  
...  

Background: This paper reports synthesis, cytotoxic activity, and apoptosis inducing effect of a novel series of styrylimidazo[1,2-a]pyridine derivatives. Objective: In this study, anti-cancer activity of novel styrylimidazo[1,2-a]pyridines was evaluated. Methods: Styrylimidazo[1,2-a]pyridine derivatives 4a-o were synthesized through a one-pot three-component reaction of 2-aminopyridines, cinnamaldehydes, and isocyanides in high yield. All synthesized compounds 4a-o were evaluated against breast cancer cell lines including MDA-MB-231, MCF-7, and T-47D using MTT assay. Apoptosis was evaluated by acridine orange/ethidium bromide staining, cell cycle analysis, and TUNEL assay as the mechanism of cell death. Results: Most of the synthesized compounds exhibited more potent cytotoxicity than standard drug, etoposide. Induction of apoptosis by the most cytotoxic compounds 4f, 4g, 4j, 4n, and 4m was confirmed through mentioned methods. Conclusion: In conclusion, these results confirmed the potency of styrylimidazo[1,2-a]pyridines for further drug discovery developments in the field of anti-cancer agents.


2021 ◽  
Author(s):  
Goutam Brahmachari ◽  
Indrajit Karmakar ◽  
Pintu Karmakar

A one-pot procedure for the synthesis of biologically relevant coumarin-hydrazones by a three-component reaction between 4-hydrocoumarins, primary aromatic amines and tert-butyl nitrite under ball-milling in the absence of any catalyst/additive...


Synlett ◽  
2017 ◽  
Vol 28 (17) ◽  
pp. 2295-2298
Author(s):  
Kommula Dileep ◽  
M. Murty

A simple and efficient synthetic protocol has been developed involving a one-pot three-component reaction of a 2-chlorobenzazole, piperazine, and an arenesulfonyl chloride under aqueous conditions at room temperature in the absence of a catalyst, ligand, or base. By using this protocol, a variety of 2-[4-(arylsulfonyl)piperazin-1-yl]-1,3-benzothiazole, -1H-benzimidazole, and -1,3-benzoxazole derivatives were synthesized in excellent yields.


RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26783-26790 ◽  
Author(s):  
Hamid Reza Safaei ◽  
Farbod Dehbozorgi

A rapid and efficient solvent-free one-pot synthesis of novel alkyl amino aryl furan tricarbonitrile derivatives is described under catalyst-free conditions.


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