Kinetic Studies on SNAr Reactions of Substituted Benzofurazan Derivatives: Quantification of the Electrophilic Reactivities and Effect of Amine Nature on Reaction Mechanism.

Autor:	Raissi, H., Jamaoui, I., Goumont, R., Boubaker, T.
Předmět:	HYDROGEN bonding CHEMICAL reactions ELECTROPHILIC addition reactions AMINE analysis HETEROCYCLIC compounds RADICALS (Chemistry)
Zdroj:	International Journal of Chemical Kinetics; Dec2017, Vol. 49 Issue 12, p835-846, 12p
Abstrakt:	ABSTRACT Kinetics of the nucleophilic aromatic substitution reactions of 7-L-4-nitrobenzofurazans 1 ( 1a: L = Cl and 1b: L = OCH3) and secondary cyclic amines (morpholine, piperidine, and pyrolidine) 2a-c have been measured in acetonitrile solution at 20°C. The derived values of second-order rate constants ( k1) have been employed to determine the electrophilicity parameters E for both benzofurazans 1a and 1b according to the linear free enthalpy relationship: log k (20°C) = sN( E + N) (Eq. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu