110210-07-6Relevant articles and documents
Studies of Tertiary Amine Oxides. Part 14. Protic Solvent Effects on the Rate of Thermal Rearrangement of N-(2,4-Dinitrophenyl)piperidine N-oxide
Al-Kazzaz, Abdul-Khalik S.,Hanna, Salim Y.,Khuthier, Abdul-Hussain
, p. 1661 - 1664 (2007/10/02)
The rate of rearrangement of N-(2,4-dinitrophenyl)piperidine N-oxide has been studied in 15 hydroxylic solvents.The first-order rate coefficients (kobs) have been successfully correlated with different solvent parameters.The results are explained in terms of the nucleophilic solvation capability of the solvent which in turn supports the previously proposed three-membered ring-activated complex.Moreover, the role of the HBD ability of the solvent in this reaction is also pronounced, particularly since reaction in alcohols exhibits lower reactivity and higher enthalpy and entropy of activation compared with aprotic solvents.
Studies of Tertiary Amine Oxides. Part 8. Rearrangement of N-(2,4-Dinitrophenyl)-piperidines and -morpholine N-Oxides in Aprotic Solvents
Khuthier, Abdul-Hussain,Al-Mallah, Khawla Y.,Hanna, Salim Y.
, p. 109 - 112 (2007/10/02)
The N-oxides of N-(2,4-dinitrophenyl)-piperidines and -morpholine undergo thermal rearrangement to the substituted hydroxylamines.The kinetics of the rearrangement were studied in aprotic solvents at four or five temperatures.Steric and polar factors have
