Three‐component, one‐pot synthesis of pyrano[3,2‐c]chromene derivatives catalyzed by ammonium acetate: Synthesis, characterization, cation binding, and biological determination

2019 ◽  
Vol 57 (1) ◽  
pp. 291-298
Author(s):  
Chiheb Mhiri ◽  
Lamia Boubakri ◽  
Riadh Ternane ◽  
Lamjed Mansour ◽  
Abdel Halim Harrath ◽  
...  
2011 ◽  
Vol 76 (11) ◽  
pp. 1307-1315 ◽  
Author(s):  
Behrooz Maleki ◽  
Hafezeh Salehabadi ◽  
Zeinalabedin Sepehr ◽  
Mina Kermanian

A simple and benign protocol has been explored for the preparation of 2,4,6-triarylpyridines by a one-pot reaction between aryl aldehydes, enolizable ketones and ammonium acetate in the presence of N-bromosuccinimide or trichloroisocyanuric acid as green and neutral catalysts. The reactions proceed smoothly at 130 °C under solvent-free conditions to provide 2,4,6-triarylpyridines in good yields.


Tetrahedron ◽  
2013 ◽  
Vol 69 (32) ◽  
pp. 6541-6544 ◽  
Author(s):  
Arash Ghorbani-Choghamarani ◽  
Maryam Hajjami ◽  
Masoomeh Norouzi ◽  
Yunes Abbasityula ◽  
Václav Eigner ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95957-95964 ◽  
Author(s):  
Xushun Qing ◽  
Ting Wang ◽  
Feixiang Zhang ◽  
Cunde Wang

The diversity-oriented synthesis of 2,4,6-trisubstituted pyridines via K2CO3-promoted multicomponent reactions of the β-nitrostyrenes, available substituted salicylic aldehydes and ammonium acetate have been developed.


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Nasim Milani Kalkhorani ◽  
Majid M. Heravi

An efficient method for the synthesis of 1,2,4,5-tetra substituted imidazoles usingK7Na3P2W18Cu4O68as catalyst is reported. This four-component condensation of benzil, aldehydes, amines, and ammonium acetate proceeds under solvent-free conditions. The catalyst is handling and recoverable.


2015 ◽  
Vol 21 (2) ◽  
Author(s):  
Mohammad Heidari ◽  
Mohsen Rezaei ◽  
Rashid Badri

AbstractThe reaction of benzil, an aromatic aldehyde, and ammonium acetate in ethanol at reflux in the presence of tributylhexadecylphosphonium bromide as catalyst affords a 2,4,5-trisubstituted imidazole. The present methodology offers several advantages over the literature methods, including excellent yields, shorter reaction times, environmentally benign milder reaction conditions, cost-effectiveness of catalyst, easy workup, and purification of products by nonchromatographic methods.


2013 ◽  
Vol 144 (7) ◽  
pp. 1031-1041 ◽  
Author(s):  
Hui Liu ◽  
Qian Sun ◽  
Zhengquan Zhou ◽  
Juanjuan Liu ◽  
Jing Yang ◽  
...  

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