Stereoselective formal synthesis of (−)-mesembrane by intramolecular condensation of chiral amide and 1,3-cyclohexanedione moiety
✍ Scribed by Le Anh Tuan; Guncheol Kim
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- French
- Weight
- 484 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
A new stereoselective formal synthesis of (À)-mesembrane has been achieved by intramolecular condensation of chiral amide and 1,3-cyclohexanedione moiety. The precursor amide was readily prepared by condensation of the corresponding chiral amine and acid. Condensation provided moderate ratios of ene-amide derivatives and the following transformation of functional groups has yielded the known precursor for (À)-mesembrane, resulting in formal synthesis.
📜 SIMILAR VOLUMES
The intramolecular Ru(II)-catalyzed radical addition of trichloroacetyl and 2,2-dichloro-4-hexenoyl pendant groups to a 1,3-dihydro-2-imidazolone moiety provides a perfectly stereocontrolled approach to the preparation of 1,2-diamines which contain contiguous multi-stereocenters. Typical examples fo