2,5-DIHYDRO-1H-1,2,4-TRIAZOL-2-YL RADICALS - SYNTHESES AND PROPERTIES

Authors
NEUGEBAUER FA FISCHER H
Citation
Fa. Neugebauer et H. Fischer, 2,5-DIHYDRO-1H-1,2,4-TRIAZOL-2-YL RADICALS - SYNTHESES AND PROPERTIES, Tetrahedron, 51(47), 1995, pp. 12883-12898
Citations number
40
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron → ACNP
ISSN journal
00404020
Volume
51
Issue
47
Year of publication
1995
Pages
12883 - 12898
Database
ISI
SICI code
0040-4020(1995)51:47<12883:2R-SAP>2.0.ZU;2-G
Abstract
A range of 2,5-dihydro-1H-1,2,4-triazol-2-yl radicals 2b-p has been pr epared by dehydrogenation of the corresponding 4,5-dihydro-1H-1,2,4-tr iazoles 5b-p which have been synthesized using various methods. EPR, E NDOR and NMR studies have led to a complete analysis and full assignme nt of all hyperfine coupling constants. The pi-SOMO, having a node at the C(3) methine carbon, is mainly confined to the nitrogens of the fi ve-membered ring, particularly to those of the hydrazyl moiety.