Synthesis of vinylcyclopropanes via palladium-catalyzed coupling of cyclopropylzinc halides with vinyl iodides. Total syntheses of (±) -prezizanol and (±)-prezizaene
作者:Edward Piers、Michel Jean、Peter S. Marrs
DOI:10.1016/s0040-4039(00)95593-x
日期:——
Palladium(O)-catalyzedcoupling of cyclopropylzinc halides, readily prepared from the corresponding cyclopropyl (tri--butyl)stannanes, with vinyl iodides provides good yields of functionalized vinylcyclopropanes. The coupling reaction is used as a key step in total syntheses of the sesquiterpenoids (±)-prezizanol and (±)-prezizaene.
Allo-cedrol: A new tricarbocyclic sesquiterpene alcohol
作者:Bunichiro Tomita、Yoshiyuki Hirose
DOI:10.1016/0031-9422(73)80575-8
日期:1973.6
Abstract The structure of a new tricarbocyclic sesquiterpenealcohol, named allo -cedrol, was determined by relation with β-acoradiene. The enantiomer of prezizaene and several compounds were obtained from the p -bromobenzenesulfonate of allo -cerol.
作者:Peter J. Carrol、Emilio L. Ghisalberti、David E. Ralph
DOI:10.1016/s0031-9422(00)94442-x
日期:——
Abstract The structures of three new tricyclicsesquiterpenesfrom Eremophila georgei are described. The absolute stereochemistry of these sesquiterpenes is shown to be antipodal to that of the zizane sesquiterpenes of vetiver oil.