## Abstract The reaction of 1β(3,5βdimethylpyrazolβ1βyl)acetone **4** with aromatic diazonium salts afforded the corresponding arylhydrazones **5a,b** that were converted into pyridazines **6a,b** and **8** __via__ condensation with active methylene nitriles and dimethylformamide dimethylacetal, re
STUDIES WITH POLYFUNCTIONALLY SUBSTITUTED HETEROAROMATICS: THE REACTIVITY OF ALKYLAZOLES TOWARDS ELECTROPHILIC REAGENTS
β Scribed by Zayed, Salem E.; Aziz, Suzan Ibrahim; Brian, Ayman Wahba; Mohareb, Rafat Milad; Abou Elmaged, Eiman I.; Metwally, S. A.; Elnagdil, M. H.
- Book ID
- 120202283
- Publisher
- Taylor and Francis Group
- Year
- 1995
- Tongue
- English
- Weight
- 357 KB
- Volume
- 102
- Category
- Article
- ISSN
- 1042-6507
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π SIMILAR VOLUMES
The 1-substituted ethylidenemalononitriles la-c condensed with triethyl orthoformate in refluxing acetic anhydride to yield the dienes 2a-c. On the other hand, a mixture o f N, N-dimethylformamide and triethyl orthoformate condensed with la-d to yield the N, N-dimethylaminopentadienonitriles 2d-g. T
The reactions of formaldehyde and acetaldehyde with active methylene compounds, followed by reaction with cyanoacetic acid hydrazide 2, afforded N-aminopyridine-2-one derivatives 5a-f. In contrast, the reactions of cyanoacetic acid hydrazide 2 with aliphatic aldehydes and cyanothioacetamide afforded