Metal-Free Oxidation of Urazole and 1,4-Dihydropyridine Derivatives Under Mild and Heterogeneous Conditions by Nitro Urea, Derived from Urea Nitrate, and Silica Sulfuric Acid

Author(s): Arash Ghorbani-Choghamarani, Mohammad A. Zolfigol, Maryam Hajjami, Shahrbanoo Rastgoo, Shadpour Mallakpour.

Journal Name: Letters in Organic Chemistry

Volume 7 , Issue 3 , 2010

Become EABM
Become Reviewer


Mild combination of nitro urea, derived from urea nitrate, and silica sulfuric acid (SiO2OSO3H) might act as an efficient oxidizing media, which could be able to oxidize different types of heterocyclic compounds including urazoles and 1,4-dihydropyridines. The process presented here is operationally simple, environmentally benign, and reactions have been mildly carried out in dichloromethane at room temperature.

Keywords: Urazole, 1,4-dihydropyridine, urea nitrate, nitro urea, silica sulfuric acid

Rights & PermissionsPrintExport Cite as

Article Details

Year: 2010
Page: [249 - 254]
Pages: 6
DOI: 10.2174/157017810791112450
Price: $65

Article Metrics

PDF: 9