PYROLYSIS AND PHOTOLYSIS OF 1-AROYLAMINO-4,5-DIARYL-1,2,3-TRIAZOLES -GENERATION AND THERMAL TRANSFORMATIONS OF 4,5-DIARYL-1,2,3-TRIAZOLYL RADICALS

Authors
HADJIANTONIOUMAROULIS CP CHARALAMBOPOULOS AP MAROULIS AJ
Citation
Cp. Hadjiantonioumaroulis et al., PYROLYSIS AND PHOTOLYSIS OF 1-AROYLAMINO-4,5-DIARYL-1,2,3-TRIAZOLES -GENERATION AND THERMAL TRANSFORMATIONS OF 4,5-DIARYL-1,2,3-TRIAZOLYL RADICALS, Journal of heterocyclic chemistry, 35(4), 1998, pp. 891-894
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of heterocyclic chemistry → ACNP
ISSN journal
0022152X
Volume
35
Issue
4
Year of publication
1998
Pages
891 - 894
Database
ISI
SICI code
0022-152X(1998)35:4<891:PAPO1->2.0.ZU;2-4
Abstract
The pyrolysis of 1-aroylamino-4,5-diphenyl-1,2,3-triazoles 1 yields, p ressumably via the 4,5-diphenyl-1,2,3-triazolyl radical (2a), 2,3-diph enyl-2H-azirine (11a) and 2-aryl-4,5-diphenylimidazoles 14 as the majo r products. Upon irradiation 1-benzoylamino-4,5-diphenyl-1,2,3-triazol e (1a) gives 4,5-diphenyl-1(2)H-1,2,3-triazole (4a) via the 1,2,3-tria zolyl radical 2a, together with benzamide (5a) and 1,2-bisbenzoylhydra zine (6a). Products 5a and 6a result from the benzoylamino radical 3a by hydrogen atom abstraction and dimerization respectively.