Nitrous and nitric acid ionisation equilibria and nitrous acid-catalysed nitration of 4-fluorophenol, in aqueous trifluoroacetic acid

Autor:	Roy B. Moodie, Ben D. Beake
Rok vydání:	1998
Předmět:	inorganic chemicals Nitrous acid chemistry.chemical_compound Aqueous solution chemistry Nitric acid Ionization Nitration Kinetics Inorganic chemistry Trifluoroacetic acid Decomposition
Zdroj:	Journal of the Chemical Society, Perkin Transactions 2. :1-6
ISSN:	1364-5471 0300-9580
DOI:	10.1039/a707021g
Popis:	The acidity dependencies of the equilibria between nitrous acid and nitrosonium ion, and between nitrate ion and nitric acid in aqueous trifluoroacetic acid (TFA) have been investigated. The decomposition of nitrous acid in air-saturated aqueous TFA has been studied and is considerably faster than in dilute HCl. Nitrous acid and 4-fluorophenol in TFA react to give quantitatively 4-fluoro-2-nitrophenol. The kinetics are shown to be consistent with the mechanism previously proposed for similar substrates in dilute aqueous acid.
Databáze:	OpenAIRE
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