Processes for the preparations of optically active cyclopentenones and cyclopentenones prepared therefrom
申请人:Yeh Yu-Chih
公开号:US20070166809A1
公开(公告)日:2007-07-19
The present invention relates to novel processes for preparing optically active Cyclopentenones of Formula (R)-1,
which are useful for the preparation of Prostaglandins and analogs thereof. The invention also relates to novel Cyclopentenones prepared from the processes.
nitromethane conjugate addition to 2-cyclo-pentenones bearing a 4-oxygenated function has been illustrated through a short and practical synthesis of the Coreyaldehyde, a key intermediate in prostaglandinsynthesis, in both racemic and optically active form. A new synthesis of PGF2α featuring the introduction of the ω-chain via [3+2] cycloaddition has been also described.