摘要
A novel diastereoselective route to (+)-a-cyperone(1) and (-)-10-epi-a-Cyperone(2) hasbeen developed. The key step involves an asymmetric Michael addition of the correSPonding chiralimine, derived from R-(+)-dihydrocarvone(3), to ethyl vinyl ketone.
A novel diastereoselective route to (+)-a-cyperone(1) and (-)-10-epi-a-Cyperone(2) hasbeen developed. The key step involves an asymmetric Michael addition of the correSPonding chiralimine, derived from R-(+)-dihydrocarvone(3), to ethyl vinyl ketone.
