964-79-4Relevant academic research and scientific papers
KINETICS OF THE REACTION OF 2-(2,4-DINITROPHENOXY)-N-ETHYLPYRIDINIUM TETRAPHENYLBORATE WITH AROMATIC AMINES IN ACETONITRILE
Titskii, G. D.,Mitchenko, E. S.,Dubovaya, A. A.
, p. 1945 - 1949 (2007/10/02)
The reactions of 2-(2,4-dinitrophenoxy)-N-ethylpyridinium salts with arylamines take place by nucleophilic substitution at a carbon atom of the benzene ring with the formation of 2,4-dinitrodiphenylamine derivatives.The sensitivity coefficient (ρ0) to the induction effect of the substituents in the arylamine does not depend on the temperature in the range of 10-55 deg C and is equal to -6.89.The constant of the leaving group (τAr) for the 2-hydroxy-N-ethylpyridinium cation amounts to 1.66.
REACTIONS BETWEEN 1-HALOGENO-2,4-DINITROBENZENES AND SUBSTITUTED ANILINES: KINETICS AND EVIDENCE FOR THE PRESENCE OF A MOLECULAR COMPLEX
Forlani, Luciano
, p. 205 - 212 (2007/10/02)
The title reactions (halogen = F or Cl) have been studied in benzene and in chloroform.The experimental reaction order in aniline is higher than 2 in every case (the value 3 is reached for the fluoro derivative in both solvents).Spectroscopic evidence (1H NMR and UV) indicates the presence of a molecular complex the formation of which (together with a base-catalysed step) is probably responsible for the observed kinetic features.The substituent effect (in aniline) is discussed.
