Polyene Cyclization Promoted by the Cross Conjugated α-Carbalkoxy Enone System. An Efficient Approach to Highly Functionalized Decalins
作者:Hsing-Jang Liu、Daqing Sun、Kak-Shan Shia
DOI:10.1002/jccs.199900062
日期:1999.6
AbstractThe cross conjugated α‐carbalkoxy enone system was found to be an excellent promoter for polyene cyclization. Under mild conditions, the reaction occurred readily with a high degree of regio‐ and stereoselectivity. Based on this facile process, an efficient method for the construction of highly functionalized decalin derivatives has been developed.
An Efficacious Synthetic Strategy for cis-Clerodane Diterpenoids. Application to the Total Synthesis of (±)-6β-Acetoxy-2-oxokolavenool
complexity and biological activity associated with this class of natural products have attracted extensive effort towards their total synthesis. In most of the reported syntheses, the synthetic sequence is specific to the target molecule. We have recently developed a versatile synthetic approach which is applicable to the synthesis of a large number of target molecules with minor modifications. The key operation