Open AccessSynthesis and characterization of a new hydrazyl free radical, a formyl-derivative of DPPH
Author(s) -
Petre Ioniță
Publication year - 2021
Publication title -
revue roumaine de chimie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.135
H-Index - 21
ISSN - 0035-3930
DOI - 10.33224/rrch.2021.66.2.12
Subject(s) - derivative (finance) , hydrazine (antidepressant) , chemistry , dpph , medicinal chemistry , organic chemistry , antioxidant , chromatography , financial economics , economics
Starting from 2,2-diphenyl-1-(2,4,6-trinitropheyl)hydrazine and urotropine in the presence of trifluoracetic acid it was obtained a formyl derivative as a yellow solid, that can form under oxidative condition the persistent hydrazyl free radical 2-(p-formyl-phenyl)-2-phenyl-1-(2,4,6-trinitrophenyl)hydrazyl having a violet colour. The same formyl hydrazine derivative in the presence of a base forms the corresponding anion with a red-brown colour. The new compounds were characterized by appropriate means, like NMR, IR, UV-VIS, ESR.