Total Synthesis of (+)-Dactylol via a Novel [3 + 5] Annulation Approach
作者:Gary A. Molander、Paul R. Eastwood
DOI:10.1021/jo00119a038
日期:1995.7
(+)-Dactylol (1) has been synthesized from the known (R)-3-methyl-2-methylenecyclopentanone (20) in six steps. The key step in the synthesis involves a regioselective and stereoselective [3 + 5] annulation to afford a tricyclic ether, which upon suitable functional group manipulation was opened to provide the natural product.
Michael radical additions Two short efficient syntheses of (+)-conocephalenol from (R)-pulegone
作者:Janine Cossy、Samir Bouzbouz、Abdelhak Hakiki
DOI:10.1016/s0040-4020(99)00636-5
日期:1999.9
Two short and efficientsyntheses of (+)-conocephalenol are described from (R)-pulegone. The key steps are radical additions of tertiary radicals to enones and an intramolecular aldol cyclization under acidic conditions.