## 141 (5) (4) was obtained, and from it 1,2,4-triazine-5,6-dicarboxylic anhydride (5) m.p. 175-183 "C ([2] gives 176-184Β°C).
Diene Syntheses of Heterocyclic Compounds
β Scribed by G. Kresze
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 215 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0044-8249
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π SIMILAR VOLUMES
Fifteen substituted di-heterocyclic imidazoles were prepared. Ten substituted pyrazolylimidazoles were obtained by cyclocondensation of β£-oxo-β£-imidazolylketene dithioacetal or N,S-acetals with hydrazine and by ring-chain transformation of cyclic β£-oxo-β£-imidazolylketene N,O-acetals. Five isoxazolyl
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