Tin(IV) Chloride-Sodium Nitrite as a New Nitrosating Agent for N-Nitrosation of Amines, Amides and Ureas under Mild and Heterogeneous Conditions
作者:Cyril Párkányi、Benoît Célariès
DOI:10.1055/s-2006-942397
日期:——
We have developed a new method of N-nitrosation of various secondary and tertiaryamines, amides and ureas using a mixture oftin(IV) chloride and sodium nitrate. This method leads to a selective, high-yielding and mild heterogeneous N-nitrosation by in situ generation of nitrosylchloride (NOCl). The reaction can be carried out in several different solvents such as chloroform, dichloromethane, ethers
Bismuth Chloride–Sodium Nitrite: A Novel Reagent for Chemoselective <i>N</i>-Nitrosation
作者:Atul C. Chaskar、Bhushan P. Langi、Amol Deorukhkar、Hrushikesh Deokar
DOI:10.1080/00397910802413881
日期:2009.1.28
Abstract Bismuth(III) chloride–sodium nitrite was used as a mild and efficient reagent for N-nitrosation of various tetrazoles, secondary amines, and amides under ambient conditions. Nitrosation took place chemoselectively at the nitrogen atom, giving corresponding N-nitroso derivatives in good to excellent yield.