ChemInform Abstract: A Simple and Convenient Synthetic Method for α-Trifluoromethylpyridines.
✍ Scribed by E. OKADA; T. KINOMURA; Y. HIGASHIYAMA; H. TAKEUCHI; M. HOJO
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 33 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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Reaction of α,β-unsaturated trifluoromethyl ketones (I) with primary enamines in the presence of POCl 3 and pyridine adsorbed on silica gel and following oxidation of the resulting dihydropyridines provides a high-yielding synthesis of title compounds (III) (16 examples). -(KATSUYAMA, I.; OGAWA,