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Synthesis of angular triquinanes from (+)-β-cedrol

✍ Scribed by Marie-Christine Pierre; Alphonse Tenaglia; Maurice Santelli

Book ID
108379131
Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
530 KB
Volume
54
Category
Article
ISSN
0040-4020

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Synthesis of the angular triquinane (±)-
Synthesis of the angular triquinane (±)-pentalenene via small ring intermediates.
✍ Michel Franck-Neumann; Michel Miesch; Laurence Gross 📂 Article 📅 1992 🏛 Elsevier Science 🌐 French ⚖ 266 KB

Dimethyl t-butylsilyl enol ethers of cycloalkananes react with ethyl propynoore in the presence of ZrCl4 to give protected cyclobutenic hydroxy esters. Cycloproponation by cycloaddition of diazoalkanes followed by sensitized photocleavage. leads to bicycle I2.1 .O] pentan-2-ol derivatives which are