Synthesis of 1,8-cineole and 1,4-cineole by isomerization of α-terpineol catalyzed by heteropoly acid
✍ Scribed by Enio J. Leão Lana; Kelly A. da Silva Rocha; Ivan V. Kozhevnikov; Elena V. Gusevskaya
- Book ID
- 104057084
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 176 KB
- Volume
- 259
- Category
- Article
- ISSN
- 1381-1169
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The irradiation (A > 280 nm) of oxygen-saturated solutions of l&cineole containing catalytic amounts of (Bu.+N)~W,,O,, leads to the oxygenation of this natural product. After subsequent treatment with pyridinium chlorochromate, 5-and 6-k&o derivatives of l,S-cineole are obtained in the ratio of 2.5: