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Protonation Equilibrium of 4-Substituted Benzohydroxamic Acids in Mineral Acids

✍ Scribed by Ghosh, Kallol K.; Tamrakar, Pankaj; Rajput, Surendra K.


Book ID
120818183
Publisher
American Chemical Society
Year
1999
Tongue
English
Weight
168 KB
Volume
64
Category
Article
ISSN
0022-3263

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## Abstract The rates of NHCOOH proton exchange between 5‐amino‐(**1a**) and 5‐__N__‐methylamino‐(**1b**)3‐[2‐(5′‐nitro‐2′‐furyl)vinyl]‐1,2,4‐oxadiazoles and trifluoroacetic acid (TFA) have been measured by NMR spectroscopy. The values of the first‐order rate constant and thermodynamic parameters