Aromatization of 1,4-dihydropyridines in the presence of methanesulfonic acid/NaNO<sub>2</sub>/wet SiO<sub>2</sub>under both heterogeneous and solvent free conditions
作者:Khodabakhsh Niknam、Seyed Mehdi Razavian、Mohammah Ali Zolfigol、Iraj Mohammahpoor-Baltork
DOI:10.1002/jhet.5570430131
日期:2006.1
A combination of methanesulfonic acid and sodium nitrite in the presence of wet SiO2 was used as an effective oxidizing agent for the oxidation of 1,4-dihydropyridines to the corresponding pyridine derivatives under mild and heterogeneousconditions in excellent yields.
Silica Chloride/NaNO 2 as a Novel Heterogeneous System for the Oxidation of 1,4-Dihydropyridines Under Mild Conditions via In Situ Generation of NOCl
作者:Mohammad Ali Zolfigol、Farhad Shirini、Arash Ghorbani Choghamarani、Iraj Mohammadpoor-Baltork
DOI:10.1080/10426500307836
日期:2003.8.1
A combination of silica chloride and sodium nitrite in the presence of wet SiO2 were used as an effective oxidizing agent for the oxidation of dihydropyridines to their corresponding pyridine derivatives under mild and heterogeneous conditions in moderate to excellent yields.
Molybdatophosphoric Acid/NaNO2/Wet SiO2 as an Efficient System for Oxidation of 1,4-Dihydropyridines under Mild and Heterogeneous Conditions
作者:Khodabakhsh Niknam、Mohammah Ali Zolfigol、Seyed Mehdi Razavian、Iraj Mohammadpoor-Baltork
DOI:10.3987/com-04-10302
日期:——
A combination of molybdatophosphoric acid (H3PMo12O40.xH(2)O) and sodium nitrite in the presence of wet SiO2 was used as an effective oxidizing agent for the oxidation of 1,4-dihydropyridines to the corresponding pyridine derivatives under mild and heterogeneous conditions in excellent yields.