The intramolecular diels-alder reactions of (E)- and (Z)-methyl 5-12-methyl-4-(trihethylsilyloxy)-2,4-cyclopentadienyl]-2-pentenoate. A stereoselective synthesis of (±)-sativene
作者:Roger L. Snowden
DOI:10.1016/s0040-4020(01)87392-0
日期:1986.1
The intramolecular Diels-Alder reactions of (E)- and (Z)-trime-thylsilyl cyclopentadienyl ethers, (E)-6a and (2)-6a, proceed with excellent stereo- and regioselectivity. Starting from the tricyclic keto ester 8, available from the former reaction, a stereoselective synthesis of (±)-sativene (26) is described.
(E)-和(Z)-三甲基-乙基甲硅烷基环戊二烯基醚(E)-6a和(2)-6a的分子内Diels-Alder反应以优异的立体选择性和区域选择性进行。从可从前一反应获得的三环酮酸酯8开始,描述了(±)-Sativene(26)的立体选择性合成。