199285-74-0Relevant academic research and scientific papers
Oxidative aromatization of Hantzsch 1,4-dihydropyridines by cupric bromide under mild heterogeneous condition
Saikh, Forid,De, Rimpa,Ghosh, Somnath
supporting information, p. 6171 - 6174 (2014/12/10)
A mild heterogeneous oxidizing agent, cupric bromide has been utilized for the oxidative aromatization of Hantzsch 1,4-dihydropyridines to the corresponding pyridine derivatives in excellent yields with the isolation of products by simple work-up procedur
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.
Oxidative-aromatization of hantzsch ester 1,4-dihydropyridines by KBrO 3/Cocl2.6H2O under mild condition
Dilmaghani, Karim Akbari,Zeynizadeh, Behzad,Mirzaei, Mansoor
, p. 139 - 142 (2008/02/12)
KBrO3/CoCl2.6H2O system was used as an effective oxidizing agent for the oxidation of 1,4-dihydropyridines to the corresponding pyridine derivatives in refluxing CH3CN. The products were obtained in high to exce
BIFC and QFC promoted rapid and cleaner aromatization of 1,4-dihydropyridines under solvent-free condition
Sivamurugan, Vajiravelu,Vinu, Ajayan,Suresh, Valiyaveettil,Palanichamy, Muthaiyahpillai,Murugesan, Velayutham
, p. 973 - 977 (2008/03/29)
(Chemical Equation Presented) This communication expresses aromatisation of 1,4-dihydropyridines to pyridine derivatives with the help of alumina supported benzimidazolium fluorochromate (BIFC) and quinolinium fluorochromate (QFC) as oxidants under solvent-free microwave irradiation. Moderate to excellent yield (80-98%) of pyridine derivatives were achieved by this methodology.
Aromatization of Hantzsch ester 1,4-dihydropyridines with iodine under normal conditions and ultrasound irradiation
Zeynizadeh, Behzad,Dilmaghani, Karim Akbari,Roozijoy, Asli
, p. 1001 - 1004 (2007/10/03)
A variety of Hantzschester 1,4-dihydropyridines are efficiently oxidized to their corresponding pyridine compounds with iodine under normal conditions and ultra sound irradiation. There actions were carried out in refluxing CH 3CN.
Oxidative-aromatization of Hantzsch ester 1,4-dihydropyridines by KBrO 3/SnCl4-5H2O under mild condition
Zeynizadeh, Behzad,Dilmaghani, Karim Akbari,Roozijoy, Asli
, p. 557 - 562 (2007/10/03)
Different kinds of Hantzsch ester 1,4-dihydropyridines were oxidatively aromatized to their corresponding pyridine derivatives by KBrO 3/SnCl4 · 5H2O system in refluxing CH3CN. The products were obtained in high to excellent yields.
KBrO3/FeCl3 as an efficient oxidising system for aromatisation of Hantzsch 1,4-dihydropyridines in wet acetonitrile
Zeynizadeh, Behzad,Dilmaghani, Karim Akbari,Roozijoy, Asli
, p. 657 - 658 (2007/10/03)
KBrO3 in the presence of anhydrous FeCl3 efficiently aromatised Hantzsch 1,4-dihydropyridines to their corresponding pyridine derivatives in high to excellent yields. The reactions were carried out in wet CH3CN under reflux condition.
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%.
