FACTORS AFFECTING STABILITY AND EQUILIBRIA OF FREE-RADICALS .21. CAPTODATIVE DIARYLAMINYL RADICALS WITH A 2,4,6-TRIMETHYLPHENYL GROUP

Authors
ONICIU DC GHIVIRIGA I NEGOITA N BOLOGA UL GRECU MN BALABAN AT
Citation
Dc. Oniciu et al., FACTORS AFFECTING STABILITY AND EQUILIBRIA OF FREE-RADICALS .21. CAPTODATIVE DIARYLAMINYL RADICALS WITH A 2,4,6-TRIMETHYLPHENYL GROUP, Revue Roumaine de Chimie, 39(5), 1994, pp. 527-534
Citations number
26
Categorie Soggetti
Chemistry
Journal title
Revue Roumaine de Chimie → ACNP
ISSN journal
00353930
Volume
39
Issue
5
Year of publication
1994
Pages
527 - 534
Database
ISI
SICI code
0035-3930(1994)39:5<527:FASAEO>2.0.ZU;2-0
Abstract
New syntheses of sterically hindered diarylamines are described ; diar ylaminyl free radicals are formed by oxidation of the parent amines. E lectron acceptor properties of nitro, carbomethoxy and methanesulphony l groups for stabilizing diarylaminyls are discussed. By comparing the life-times of the free radicals and the hyperfine coupling constants in ESR spectra, the mesityl group has been shown to be less stabilizin g than a 3,5-di-t-butylphenyl group.