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DOI: 10.1055/s-0030-1258319
Total Synthesis of Rhoiptelol B
Publikationsverlauf
Publikationsdatum:
28. Oktober 2010 (online)

Abstract
A simple and efficient total synthesis of rhoiptelol B, isolated from the the leaves and fruits of Rhoiptelea chiliantha, is achieved using Sharpless asymmetric epoxidation, 1,3-anti-chiral allylation, olefin cross-metathesis, Sharpless asymmetric dihydroxylation, and ferric chloride catalyzed intramolecular SN2 cyclization as the key steps.
Key words
rhoiptelol B - Sharpless asymmetric epoxidation - allylation - cross-metathesis - diarylheptanoids
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References
Compound 16 was synthesized from commercially available 4-allyl anisole in two steps (Scheme [³] ).

Scheme 3 Reagents and conditions: (a) BBr3, CH2Cl2, -78 ˚C to r.t., 2 h, 70%; (b) TBDMSCl, imidazole, CH2Cl2, 0 ˚C to r.t., 98%.