759401-59-7Relevant academic research and scientific papers
Interaction of acetonitrile with trifluoromethanesulfonic acid: Unexpected formation of a wide variety of structures
Salnikov, George E.,Genaev, Alexander M.,Vasiliev, Vladimir G.,Shubin, Vyacheslav G.
supporting information; experimental part, p. 2282 - 2288 (2012/04/10)
Interaction of acetonitrile with trifluoromethanesulfonic acid has been studied by multinuclear NMR and ESI-MS. It has been found that the interaction results in formation of a great variety of different cations and neutral compounds which is controlled by the ratio of CH3CN to TfOH. In the presence of an excess of the acid (molar ratio 1:8-14) diprotonated N-acetylacetamidine 1 is formed as the major product, which eventually transforms into protonated acetamidine 3 and acetic acid 4. At molar ratio of (1:1-2) diprotonated 2,4-dimethyl-6-methylidene-3H-1,3,5-triazine 12, tautomer of the diprotonated trimethyl-s-triazine 11, becomes the main product at an early stage of the reaction and diprotonated 1-(dimethyl-1,3,5-triazin-2-yl) prop-1-en-2-ol 15 at a later stage. In the case of a large excess of acetonitrile (4-20:1) trication 17 is formed as a result of the interaction between 11 and 12 along with some oligomers [(CH3CN) 3]n (n = 4-12). The Royal Society of Chemistry 2012.
