33087-41-1Relevant academic research and scientific papers
MECANISMES DE REDUCTION ELECTROCHIMIQUE DES QUINONES MONO ET DICHLORIMINE SUR PLATINE. ETUDE ET STRUCTURE DES COMPOSES OBTENUS LORS DE COULOMETRIES A FORTE CONCENTRATION
Bonastre, J.,Castetbon, A.,Andrieu, X.
, p. 145 - 152 (2007/10/02)
In this work, electrochemical reduction of quinone mono and dichlorimine was investigated on platinum cathodes.The first product produces paraaminophenol and the second produces paraphenylenediamine.Chemical reactions occur when the concentration of initial product is higher than E-4 M.Reaction between quinone monochlorimine and its ultimate reduction product occurs when concentrated solution are electrolysed on a platinum cathode.In this work, the nature and the structure of the reaction products were eluciated by physicochemical methods.An approach of the reaction mechanism is proposed.
Electronic effects of the NH2BH3 group. The hydrolysis of diamine bisboranes
Kelly, Henry C.
, p. 2173 - 2177 (2008/10/08)
The hydrolysis of m- or p-phenylenediamine bisborane occurs by two consecutive first-order processes in neutral aqueous dioxane and exhibits consecutive pseudo-first-order kinetics in the same solvent containing a relatively high concentration of hydrogen ion. In neutral solution the first step is faster than the second, while the reverse is true in acid solution. These results are interpreted in terms of the substituent effects of the m- and p-NH2BH2, -NH2, and -NH3+ groups on hydrolysis of the second and originally equivalent NH2BH3 function. The acid-catalyzed hydrolysis of ethylenediamine bisborane also occurs in consecutive pseudo-first-order reactions in the region pH 2.4-3.1. Rate constants were evaluated by a graphical method and their relative values are consistent with previously proposed mechanisms for amine borane hydrolysis.
