作者:Cornelius Nussbaumer、Georg Fráter
DOI:10.1002/hlca.19880710315
日期:1988.5.4
(±)-cis-γ-Irone(1), a main constitutent of natural iris oil, has been stereoselectively synthesized from methyl (2E)-3 -[(2,2,4-trimethyl-3-cyclohexen-1-yl)methoxy]-2-propenoate (3) (6 steps, overall yield 14%). The cis-configuration as the exocyclic position of the double bond of 1 were secured by the thermal ene reaction of the β-(alkenyloxy)acrylate 3 yielding the 3-oxabicyclo [3,3,1] nonane derivative
天然虹膜油的主要成分(±)-顺式-γ- Irone(1)是由甲基(2 E)-3-[(2,2,4-三甲基-3-环己烯-1- ))(6),总产率为14%)。通过β-(烯基氧基)丙烯酸酯3的热烯反应,得到3-氧杂双环[3,3,1]壬烷衍生物5,确保作为1的双键的环外位置的顺式构型。