## Abstract magnified image The 7βarylβ4,7βdihydro[1,2,4]triazolo[1,5β__a__]pyrimidines **1a**, **1b**, **1c** can undergo addition of hydrazine to the enamine double bond leading to hydrazine derivatives of tetrahydrotriazolopyrimidines **2a**, **2b**, **2c**; the process is usually accompanied by
Chemical conversions of 5,7-disubstituted dihydro-1,2,4-triazolo[1,5-a]pyrimidines
β Scribed by S. M. Desenko; V. D. Orlov; V. V. Lipson
- Publisher
- Springer US
- Year
- 1990
- Tongue
- English
- Weight
- 398 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0009-3122
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π SIMILAR VOLUMES
Some 5,7-disubstituted derivatives of 1,2, 4-triatolo[l ,%]pyrimidines with methyl, tert-butyl, phenyl and trifluoromethyl substituents were studied. The syntheses and 'H, l3C\* 1 6 N and lgF N M R and mass spectra are reported. Natural abundance 1 6 N N M R spectra and signal assignments, based on
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