Synthesis of 5,7-dimethylpyrazolo[3 ',4 ': 4,5]thiazolo-[2,3-c]-1,2,4-triazole, an analogue of tricyclazole

Authors
Vicentini, CB Manfrini, M Mares, D Veronese, AC
Citation
Cb. Vicentini et al., Synthesis of 5,7-dimethylpyrazolo[3 ',4 ': 4,5]thiazolo-[2,3-c]-1,2,4-triazole, an analogue of tricyclazole, HETEROCYCLE, 51(4), 1999, pp. 829-832
Citations number
13
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLES
ISSN journal
03855414 → ACNP
Volume
51
Issue
4
Year of publication
1999
Pages
829 - 832
Database
ISI
SICI code
0385-5414(19990401)51:4<829:SO5''4>2.0.ZU;2-R
Abstract
An efficient synthesis of 5,7-dimethylpyrazolo [3',4' :4,5]thiazolo[2,3-c]- 1,2,4-triazole (2), an analogue of tricyclazole, was achieved by treatment of 4-(4'-amino-1',3'-dimethylpyrazol-5'-yl)-1,2,4-triazole-3-thione (7) wit h sodium nitrite in acidic medium followed by irradiation with UV light.