115601-10-0Relevant academic research and scientific papers
N-Butylammonium carboxylates/Tf2O: Ionic liquid based systems for the synthesis of unsymmetrical imides via a Ritter-type reaction
Khodaei, Mohammad Mehdi,Nazari, Ehsan
experimental part, p. 2881 - 2884 (2012/07/28)
We have developed a new method for the preparation of unsymmetrical imides using liquid carboxylate salts via a Ritter-type process. The reactions were carried out with nitriles and n-butylammonium carboxylates as ionic liquids in the presence of triflic anhydride (Tf2O) as the promoter. Mild reaction conditions, simplicity of the procedure, and proton-free conditions are the main advantages of this procedure.
Cathodic Reductions of Acid Azides. Electrolytic Studies on Vinyl Acides, VIII
Knittel, Dierk
, p. 379 - 388 (2007/10/02)
The cathodic reduction of the O=C-N3-system in aprotic solvent in the presence of anhydrides proves to be a convenient way to triacylammonia derivatives.Using the complexation of Li(+) ions with the acid azide this synthetic methods can start from non-dangerous acid halides.The complex formation constant has been estimated and the chemical stability of N,N-diacylamides produced has been investigated.Mechanistic details about the role of Li(+)-ions in these electrolyses are given.Further reduction of the triacylammonia derivatives at more negative potentials results in protected aldehydic functions, i.e. 1-acyloxy-1-diacylaminomethanes, in good yields. - Keywords: Acid azides; N,N-Diacylamides; 1-Acyloxy-1-diacetyl-aminomethanes; Lithiumion-azide complexes; Cathodic reduction
