Acid-Catalyzed Reactions of Ortho-Substituted Benzohydroxamic Acids in Polyphosphoric Acid (PPA)
Ortho-substituted benzohydroxamic acids undergo a variety of reactions when treated with PPA.The nature of substituents on the ring and on the functional group CONHOH plays a key role in influencing the reaction pathways.The difference in behavior may arise due to change in site of protonation depending upon the substitution.However, no clear-cut relationship could be established as attempts to monitor reactions on NMR proved inconclusive.
Chhaya, P. N.,Nimbalkar, M. M.,Hosangadi, B. D.
p. 4458 - 4460
(2007/10/02)
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