Kinetics of hydrogen exchange in 1,3-dinitrobenzene in sodium methoxide–methan[2H]ol solutions

Autor:	I. R. Bellobono, G. Sala
Rok vydání:	1972
Předmět:	chemistry.chemical_compound Reaction rate constant Proton chemistry Inorganic chemistry Kinetics Physical chemistry Reactivity (chemistry) Activation energy Methoxide Kinetic energy Sodium methoxide
Zdroj:	J. Chem. Soc., Perkin Trans. 2. :169-172
ISSN:	1364-5471 0300-9580
Popis:	Pseudo-first order rate coefficients for protium–deuterium exchange at the 4- and 6-positions of 1,3-dinitrobenzene in methan[2H]ol solution containing 0·2–0·9M-MeO– have been measured at 75–100 °C by i.r. analysis of the MeOH formed. Second-order rate constants k[log (k/M–1 s–1)= 10·8 – 5140/T] were obtained by evaluation of the kinetic activity of the methoxide ions. Comparison with previously determined kinetic parameters relative to the 2-position shows that positional reactivity is determined by the activation energy. The mechanism is discussed in terms of proton removal and internal return.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6a9820a93b67b4ce0506df495f0cf957 https://doi.org/10.1039/p29720000169 Zobrazit plný text záznamu