Bicycloannulation with isopropenyltriphenylphosphonium bromide. The synthesis of trachyloban-19-oic acid
- 1 January 1979
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 11,p. 504-506
- https://doi.org/10.1039/c39790000504
Abstract
1-Methyltricyclo[3.2.1.02,7]octan-6-ones can be prepared in one step from the α′-enolates of αβ-cyclohexenones and isopropenyltriphenylphosphonium bromide; this reaction has been employed as the key step in a synthesis of trachyloban-19-oic acid from podocarpic acid.Keywords
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