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ChemInform Abstract: A Convenient and Regioselective Synthesis of 4-Trifluoromethylpyridines.

โœ Scribed by I. KATSUYAMA; S. OGAWA; Y. YAMAGUCHI; K. FUNABIKI; M. MATSUI; H. MURAMATSU; K. SHIBATA

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
29
Category
Article
ISSN
0931-7597

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โœ I. KATSUYAMA; S. OGAWA; H. NAKAMURA; Y. YAMAGUCHI; K. FUNABIKI; M. MATSUI; H. MU ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 35 KB

Reaction of ฮฑ,ฮฒ-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,