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- Title
Transformation of substituted 5-amino-1,3-oxazole-4-carbonitriles into new 3,4,5-triaminopyrazole derivatives.
- Authors
Kozachenko, A. P.; Shablykin, O. V.; Vasilenko, A. N.; Brovarets, V. S.
- Abstract
Reactions of accessible 5-alkylamino- and 5-arylamino-1,3-oxazole-4-carbonitriles with hydrazine hydrate on heating involved a complex transformation sequence resulting in the formation of 3,4,5-triaminopyrazole derivatives. The structure of the products was confirmed by their cyclocondensation with acetylacetone, leading to 2-alkyl(aryl)amino-3-acylamino-5,7-dimethylpyrazolo[1,5- a]pyrimidines which were identified by NMR spectroscopy using COSY, NOESY, HMQC, and HMBC techniques.
- Subjects
AMINO compounds; OXAZOLES; PYRAZOLES; PYRIMIDINES; SPECTRUM analysis
- Publication
Russian Journal of General Chemistry, 2010, Vol 80, Issue 1, p127
- ISSN
1070-3632
- Publication type
Article
- DOI
10.1134/S1070363210010172