A Novel and Efficient Approach to Pyrazolo[1,5-a]pyridine Derivatives via One-Pot Tandem Reaction

Heterocycles ◽  
2009 ◽  
Vol 78 (1) ◽  
pp. 197 ◽  
Author(s):  
Jian-Wu Wang ◽  
Yan-Qing Ge ◽  
Yan Li ◽  
Jiong Jia ◽  
Ling Yin
ChemInform ◽  
2009 ◽  
Vol 40 (23) ◽  
Author(s):  
Yan-Qing Ge ◽  
Jiong Jia ◽  
Yan Li ◽  
Ling Yin ◽  
Jianwu Wang

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3670-3677 ◽  
Author(s):  
Pinku Kaswan ◽  
Kasiviswanadharaju Pericherla ◽  
Hitesh Kumar Saini ◽  
Anil Kumar

A facile synthesis of 3-aroylimidazo[1,2-a]pyridine derivatives has been achieved via a copper(ii) chloride catalyzed one-pot, three-component tandem reaction of acetophenones, arylaldehydes and 2-aminopyridines.


2020 ◽  
Author(s):  
Lucien Caspers ◽  
Julian Spils ◽  
Mattis Damrath ◽  
Enno Lork ◽  
Boris Nachtsheim

In this article we describe an efficient approach for the synthesis of cyclic diaryliodonium salts. The method is based on benzyl alcohols as starting materials and consists of an Friedel-Crafts-arylation/oxidation sequence. Besides a deep optimization, particluar focusing on the choice and ratios of the utilized Bronsted-acids and oxidants, we explore the substrate scope of this transformation. We also discuss an interesting isomerism of cyclic iodonium salts substituted with aliphatic substituents at the bridge head carbon. <br>


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.


ChemInform ◽  
2013 ◽  
Vol 44 (28) ◽  
pp. no-no
Author(s):  
Yuqin Wang ◽  
Yanhong Chen ◽  
Qian He ◽  
Yuyuan Xie ◽  
Chunhao Yang
Keyword(s):  

ChemInform ◽  
2016 ◽  
Vol 47 (18) ◽  
Author(s):  
Tuanjie Meng ◽  
Lantao Liu ◽  
Huiyi Jia ◽  
Lifeng Ren ◽  
Cuilan Feng ◽  
...  

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