Total synthesis of the β-amyrin derivati
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E. Ghera; F. Sondheimer
📂
Article
📅
1964
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Elsevier Science
🌐
French
⚖ 177 KB
We report the total synthesis of the racemlc /l -amyrin derivatives olean-13(18)-ene (XII) and l&r-olesn-12-ene (XIII) by a direct route, not involving relays. Trevious syntheses of fl -amyrin derivatives using natural materials as relays have been described4. Condensation of the Grignard derivativ