𝔖 Bobbio Scriptorium
✦   LIBER   ✦

ChemInform Abstract: An Efficient Synthesis of Pyrazolo[3,4-b]pyridine-4-spiroindolinones by a Three-Component Reaction of 5-Aminopyrazoles, Isatin, and Cyclic β-Diketones.

✍ Scribed by Jairo Quiroga; Sandra Portillo; Alfredo Perez; Jaime Galvez; Rodrigo Abonia; Braulio Insuasty

Publisher
John Wiley and Sons
Year
2011
Weight
41 KB
Volume
42
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: Reaction of 5-Amino
ChemInform Abstract: Reaction of 5-Aminopyrazoles with β-Dimethylaminopropiophenones. Synthesis of New Pyrazolo[3,4-b]pyridines.
✍ J. QUIROGA; B. INSUASTY; S. CRUZ; P. HERNANDEZ; A. BOLANOS; R. MORENO; A. HORMAZ 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

Reaction of 5-Aminopyrazoles with β-Dimethylaminopropiophenones. Synthesis of New Pyrazolo [3,4-b]pyridines. -Reaction of 5aminopyrazoles (I) with β-aminopropiophenones (II) provides a new and simple synthetic entry into the pyrazolo[3,4-b]pyridine ring system. Oxidation of the dihydro-products (II

An efficient synthesis of pyrazolo[3,4-b
An efficient synthesis of pyrazolo[3,4-b]pyrrolo[2,3-d]pyridines from 5-aminopyrazoles and cyclic β-keto ester
✍ Raghunath B. Toche; Bhausaheb K. Ghotekar; Dhananjay B. Kendre; Muddassar A. Kaz 📂 Article 📅 2008 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 295 KB 👁 1 views

## Abstract magnified image 5‐Chloroethylpyrazolo[3,4‐__b__]pyridines were synthesized by condensation of 5‐aminopyrazoles with α‐acetyl γ‐butyrolactone followed by cyclization treating with phosphorous oxychloride. 5‐Chloroethyl‐pyrazolo[3,4‐__b__]pyridines, thus obtained, were then converted to