ChemInform Abstract: A Facile, Scalable Preparation of 4-Oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carbonitriles.
β Scribed by L. Nathan Tumey; Niala Bhagirath; Biqi Wu; Diane H. Boschelli
- Publisher
- John Wiley and Sons
- Year
- 2009
- Weight
- 48 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0931-7597
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π SIMILAR VOLUMES
## Abstract All products are purified by recrystallization from ethanol.
## Abstract 3βAminoβ5βmethylpyrazole, ethyl cyanoacetate and aromatic aldehydes undergo an acidβcatalyzed condensation to generate diastereomeric mixtures of pyrazolopyridinones (III)/(IV).
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