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Publication 92
- Asymmetric michael addition of a chiral ester-dienolate: enantioselective synthesis of (–)-khusimone
Oppolzer, W.; Pitteloud, R.; Bernardinelli, G.; Baettig, K.
Tetrahedron Lett. 1983, 24, 4975-4978
A double π-face-selective aprotic Michael addition of the lithium dienolate derived from the chiral senecioate 2b to cyclopentenone coupled with recovery of the auxiliary serves for the enantioselective synthesis of (−)-khusimone (12) (Schemes 1 and 4).