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Iodocyclization of 6-allylamino-4,5-dihydropyrazolo[3,4-d]pyrimidines

✍ Scribed by R. I. Vas’kevich, A. V. Bentya, A. V. Turov, E. B. Rusanov, V. I. Staninets, M. V. Vovk


Book ID
114993932
Publisher
SP MAIK Nauka/Interperiodica
Year
2012
Tongue
English
Weight
356 KB
Volume
48
Category
Article
ISSN
1070-4280

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Synthesis of 5-amino-4,5-dihydropyrazolo
✍ A. Maqestiau; J.-J. Vanden Eynde 📂 Article 📅 1987 🏛 Elsevier Science 🌐 French ⚖ 432 KB

Abstrat -Treatment of ethyl (heteroalkylidene)aminopyrazole-4-carboxylates with hydrazine hydrate generally provides a ready synthetic route to 5-amino-4,5-dihydropyrazolo [3.4-d] pyrimidin-4-ones, although ethyl 5-[(dimethylamino)alkylidene]aminopyrazole-4-carboxylates are unreactive. On the other