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Nitroxyl derivatives of pyrazolo [3,4-d]pyrimidine

✍ Scribed by V. A. Golubev; Yu. É. Rashba; A. N. Rozenberg

Book ID
112447270
Publisher
Springer
Year
1982
Tongue
English
Weight
252 KB
Volume
31
Category
Article
ISSN
1573-9171

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A convenient synthesis of pyrazolo[3,4-d
A convenient synthesis of pyrazolo[3,4-d]pyrimidine-4,6-dione and pyrazolo[4,3-d]pyrimidine-5,7-dione derivatives
✍ M. El Haddad; M. Soukri; S. Lazar; A. Bennamara; G. Guillaumet; M. Akssira 📂 Article 📅 2000 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 470 KB

## Abstract Pyrazolo‐[3,4‐__d__]pyrimidine‐4,6‐diones **5** and pyrazolo[4,3‐__d__]pyrimidine‐5,7‐diones **7** were synthesized by Curtius rearrangement of pyrazolic mono‐esters **2** and **3** followed by hetero‐cyclization __via__ the ureas derivatives **4** and **6** under alkaline conditions.

ChemInform Abstract: A Convenient Synthe
ChemInform Abstract: A Convenient Synthesis of Pyrazolo[3,4-d]pyrimidine-4,6-dione and Pyrazolo[4,3-d]pyrimidine-5,7-dione Derivatives.
✍ M. El Haddad; M. Soukri; S. Lazar; A. Bennamara; G. Guillaumet; M. Akssira 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v