Condensation of 2-Pyrone with 3-Aminopyrazolone. A Novel Synthesis of Pyrazolo[3,4-b]pyridines.
β Scribed by S. Fadel; Y. Hajbi; E. M. Rakib; M. Khouili; M. D. Pujol; G. Guillaumet
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 18 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
For Abstract see ChemInform Abstract in Full Text.
π SIMILAR VOLUMES
## Abstract Cyclocondensation of cyanoacetamide and cyanothioacetamide with sodium salt of 3βhydroxyβ1β(pyridinβ3βyl)propβ2βenβ1βone gave 6βoxoβ[2,3β²]bipyridine **5a** and 6βthioxoβ[2,3β²]bipyridine **5b** derivatives, respectively. Compound **5b** upon treatment with different methylenes **8** gave
## Abstract For Abstract see ChemInform Abstract in Full Text.
A facile, solvent free, ecofriendly approach for the synthesis of 2-amino-3(ethylcarboxy)-4,6-disubstituted pyridine 4 and pyrazolo [3,4-b]pyridines 6 is herein described employing neat reaction conditions under microwave irradiation. This solventless methodology is environmentally benign as it comp