Organoaluminium assisted rearrangements of five-membered ring enol ethers with vinyl substituents
作者:Ichiro Mori、Kazuhiko Takai、Koichiro Oshima、Hitosi Nozaki
DOI:10.1016/0040-4020(84)85080-2
日期:1984.1
reagents as iBu3A1, PhC=CA1Et2, and Et2A1SPh mediate the title reactions in three different directions. (1) [3,3]sigmatropic rearrangement producing 7-membered rings. (2) isomerization to form vinylcyclopropane derivatives and (3) SN2 type reaction with phenylthio anion via oxolane ring opening.
诸如i Bu 3 A1,PhC = CA1Et 2和Et 2 A1SPh的有机铝试剂可在三个不同方向上介导标题反应。(1)产生7元环的[3,3]σ重排。(2)异构化形成乙烯基环丙烷衍生物,和(3)经由氧戊环开环与苯硫基阴离子进行S N 2型反应。