✦ LIBER ✦

Synthesis of pyrazolo[3,4-d]pyrimidine derivatives using ketene dithioacetals

✍ Scribed by Yoshinori Tominaga; Yasumasa Honkawa; Mayumi Hara; Akira Hosomi

Book ID: 112129598
Publisher: Journal of Heterocyclic Chemistry
Year: 1990
Tongue: English
Weight: 693 KB
Volume: 27
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570270355

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthesis of new pyrazolo[1,5-a]pyrimidi

Synthesis of new pyrazolo[1,5-a]pyrimidine derivative using 5-aminouracil and ketene dithioacetal

✍ O. A. Fathalla 📂 Article 📅 1999 🏛 Springer 🌐 English ⚖ 253 KB

Synthesis of quinoline derivatives using

Synthesis of quinoline derivatives using ketene dithioacetals

✍ Yoshinori Tominaga; Takeharu Michioka; Kohu Moriyama; Akira Hosomi 📂 Article 📅 1990 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 755 KB

Nitroxyl derivatives of pyrazolo [3,4-d]

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

✍ V. A. Golubev; Yu. É. Rashba; A. N. Rozenberg 📂 Article 📅 1982 🏛 Springer 🌐 English ⚖ 252 KB

SYNTHESIS OF PYRAZOLO[3,4-d]PYRIDAZINE,

SYNTHESIS OF PYRAZOLO[3,4-d]PYRIDAZINE, PYRAZOLO[3,4-d]PYRIMIDINE AND IMIDAZO[1,2-a]PYRIDINE DERIVATIVES USING HYDRAZONYL BROMIDES

✍ Hassaneen, Hamdi M.; Shawali, Ahmad S.; Elwan, Nehal M.; Abounada, Nada M. 📂 Article 📅 1992 🏛 Taylor and Francis Group 🌐 English ⚖ 271 KB

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.

Novel Synthesis of 4H-Quinolizine Deriva

Novel Synthesis of 4H-Quinolizine Derivatives Using Sulfonyl Ketene Dithioacetals

✍ Masayori Hagimori; Sayaka Matsui; Naoko Mizuyama; Kenichirou Yokota; Junko Nagao 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 355 KB 👁 1 views