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- Title
Recyclization of 1,3,4-Oxadiazoles and Bis-1,3,4-oxadiazoles into 1,2,4-Triazole Derivatives. Synthesis of 5-Unsubstituted 1,2,4-Triazoles.
- Authors
Korotkikh, N. I.; Kiselev, A. V.; Knishevitsky, A. V.; Raenko, G. F.; Pekhtereva, T. M.; Shvaika, O. P.
- Abstract
Efficient methods have been developed for obtaining precursors of stable carbenes, viz. 5-unsubstituted 3,4-diaryl-1,2,4-triazoles and 3,3′- or 4,4′-bridge linked bis-1,2,4-triazoles, by the recyclization of 5-unsubstituted 1,3,4-oxadiazoles or p-phenylenebis-1,3,4-oxadiazole with anilines or aromatic diamines in the presence of trifluoroacetic acid or with aniline hydrochlorides in pyridine.
- Subjects
TRIAZOLES; HETEROCYCLIC compounds; ORGANIC cyclic compounds; CARBENES; CARBON compounds
- Publication
Chemistry of Heterocyclic Compounds, 2005, Vol 41, Issue 7, p866
- ISSN
0009-3122
- Publication type
Article
- DOI
10.1007/s10593-005-0240-2