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 A1
SPh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。