52790-65-5Relevant articles and documents
Reaction of n-Hexylamine with 2,4-Dinitrochlorobenzene in Microemulsions
Bunton, Clifford A.,Buzzaccarini, Francesco de
, p. 3142 - 3145 (1981)
Reaction of n-hexylamine with 2,4-dinitrochlorobenzene (DNC) is faster in microemulsions of n-octane, n-hexylamine, and cetyltrimethylammonium bromide (CTABr) than in water.The first-order rate constants, kψ, for reaction in the absence of surf
Electrochemical synthesis of nitroanilines
Gallardo, Iluminada,Guirado, Gonzalo,Marquet, Jordi
, p. 251 - 259 (2007/10/03)
Alkylamines and amides are readily prepared by nucleophilic aromatic substitution of hydrogen in nitroarenes by electrochemical oxidation. Useful yields (15-85%) are achieved in a simple direct and regioselective amination process. The synthetic method has been examined in the absence and presence of external bases, used to promote the first step of the nucleophilic aromatic substitution reaction, i.e. the nucleophilic attack. In both cases, good results were obtained. The unreacted starting material can easily be recovered at the end of the electrochemical oxidation process. This new method represents an environmentally favourable route to amino- and amido-substituted nitroaromatic compounds.
Aromatic nucleophilic substitution reactions of O-aryl oximes with piperidine and hexylamine in cyclohexane
Jain,Kaushik,Singh, Prashant,Sahoo,Atray,Jain, Vanya
, p. 1132 - 1137 (2007/10/03)
A detailed study of piperidinolysis and hexylaminolysis of O-(2,4-dinitrophenyl) benzophenone oxime, O-(2,4-dinitrophenyl)-p-chlorobenzophenone oxime and O-(2,4-dmitrophenyl)-p-bromobenzo-phenone oxime in cyclohexane at different temperatures has been undertaken. The piperidinolysis reactions show a third order dependence on amine and inverse temperature effect. The analysis of data indicates that the reactions proceed through two routes; the rate of first route increases and of the second route decreases with temperature. The overall rate kA shows inverse temperature effect due to predominating effect of the second route. The results support the Jack Hirst's concept of reaction mechanism in nonpolar solvents. In contrast to piperidinolysis, n-hexylaminolysis reactions show only a second order dependence on amine which has been explained to be due to lesser stability of hydrogen bonded homoconjugate acid BH+B involving long chain hexylamine molecules.
