4408-97-3Relevant academic research and scientific papers
One-pot synthesis and aromatization of 1,4-dihydropyridines in refluxing water
Xia, Jing-Jing,Wang, Guan-Wu
, p. 2379 - 2383 (2005)
A series of 1,4-dihydropyridines were synthesized in an environmentally benign method, by reacting aldehydes with acetoacetate esters or acetylacetone and ammonium acetate in refluxing water. The thus formed 1,4-dihydropyridines was subsequently oxidized in one-pot to the corresponding pyridine derivatives by either ferric chloride or potassium permanganate. Georg Thieme Verlag Stuttgart.
Oxidative aromatization of Hantzsch 1,4-dihydropyridines by sodium chlorite
Liao, Xiali,Lin, Wenbin,Lu, Jun,Wang, Chun
experimental part, p. 3859 - 3861 (2010/08/20)
Hantzsch 1,4-dihydropyridines were converted to the corresponding pyridines efficiently by sodium chlorite under mild conditions in excellent yields.
Multicomponent domino cyclization-oxidative aromatization on a bifunctional Pd/C/K-10 catalyst: An environmentally benign approach toward the synthesis of pyridines
De Paolis, Omar,Baffoe, Jonathan,Landge, Shainaz M.,Toeroek, Bela
experimental part, p. 3423 - 3428 (2009/05/09)
A one-pot synthesis of substituted pyridines via a domino cyclization-oxidative aromatization (dehydrogenation) approach is described. The process is based on the use of a new bifunctional noble metal-solid acid catalyst, Pd/C/K-10 montmorillonite and mic
Aromatization of 1,4-dihydropyridines with selenium dioxide
Cai, Xiao-Hua,Yang, Hai-Jun,Zhang, Guo-Lin
, p. 273 - 275 (2007/10/03)
1,4-Dihydropyridines were aromatized to corresponding pyridines using stoichiometric selenium dioxide at ambient temperature in a yield of 87%-98%.
The aromatization of Hantzsch 1,4-dihydropyridines by tetrakis-pyridine cobalt (II) dichromate (TPCD)
Wang, Bingxiang,Hu, Yuefei,Hu, Hongwen
, p. 4193 - 4199 (2007/10/03)
Aromatization of Hantzsch 1,4-dihydropyridines (1a-n) were promoted by tetrakis-pyridine cobalt (II) dichromate to yield corresponding pyridine derivatives (2a-n) in moderate to high yields (70-87%). The reaction was carried out under mild and convenient
Synthesis of pyridines by anodic oxidation of 1,4-dihydropyridines
Yang, Zhen,Wang, Binxiang,Hu, Hongwen,Zhu, Shimin
, p. 3163 - 3171 (2007/10/03)
Anodic oxidation of a series 1,4-dihydropyridines were performed in acetonitrile-tetrabutylammonium perchlorate electrolyte solution at platinum electrode using controlled potential electrolysis. On the bases of electroanalytical results the electrochemic
