ChemInform Abstract: A Convenient One-Pot Preparation of Stable Equivalents of Cyclobutane-1,2-dione and Cyclobutanetrione.
β Scribed by Geoffrey Deguest; Laurent Bischoff; Corinne Fruit; Francis Marsais
- Publisher
- John Wiley and Sons
- Year
- 2008
- Weight
- 19 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0931-7597
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Reaction of Ξ±,Ξ²-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,