N-versus O-protonation. Evidence from nuclear magnetic resonance spectra of [15N]acetamide in fluorosulphuric acid
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society D: Chemical Communications
- No. 2,p. 115-116
- https://doi.org/10.1039/c29710000115
Abstract
As n.m.r. spectra of [15N]acetamide in fluorosulphuric acid at low temperature confirm that the cation exists in the O-protonated form in that medium, it is concluded that N-protonated cations formed in dilute acids are converted into O-protonated cations in anhydrous acids owing to a medium effect associated with cation hydration.Keywords
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