3685-38-9Relevant academic research and scientific papers
Synthesis and spectral comparison of electronic and molecular properties of some hydrazines and hydrazyl free radicals
Ionita, Petre,Lete, Cecilia,Madalan, Augustin,Matache, Mihaela,Patrascu, Bianca,Paun, Anca,Popescu, Codruta
, (2020/08/28)
Continuing our work on hydrazyl free radicals, five triphenylhydrazine derivatives, one a new compound, were synthesized to compare the electronic and molecular properties of these compounds, study the influence of substituents on the phenyl rings, and compare their properties with the parent hydrazines and corresponding anions. These hydrazines demonstrate both acid-base and redox properties. The hydrazine proton can be removed by base, yielding the corresponding anion and both the hydrazines and their anions can be oxidized to the corresponding hydrazyl free radicals. ESR spectra confirmed their formation and X-ray crystallography of one compound confirmed their structures.
Synthesis based on 9-amino-N-picrylcarbazyl
Ionita,Caproiu,Meghea,Maior,Rovinaru,Ionita
, p. 1177 - 1183 (2007/10/03)
Starting from 9-amino-N-picrylcarbazole, the nitro-, cyano-, bromo- and dibromo-derivatives of the title compound, and the corresponding free radicals, were synthesized. The pKa values and the redox properties of the compounds synthesized were reported.
Preparation of 2,2-diaryl-1-picrylhydrazyls using potassium permanganate
Brown, K. C.,Weil, J. A.
, p. 1836 - 1838 (2007/10/02)
Potessium permanganate is used as a reagent for the oxidation of various 2,2-diaryl-1-picrylhydrazines to their corresponding hydrazyls.Thin-layer chromatography indicates complete oxidation of the hydrazine to free radical, unlike the case with PbO2 (the most widely used oxidant for this purpose).Several other advantages over previous oxidants used to produce the hydrazyls are offered.
