Synthesis of functionalized cyclotriveratrylene analogues with C1-symmetry and the application for 1,4-Michael addition of alcohols to unsaturated aryl ketone
作者:Jing-Ru Song、Zhi-Tang Huang、Qi-Yu Zheng
DOI:10.1016/j.tet.2013.06.077
日期:2013.9
the selectively demethylated compound 1. Through the chemical resolution, a pair of enantiomers of C1-symmeric compound 1 could be separated with gram scale. Compound 8, which possessed an N-linked imidazolium unit at the upper rim of the macrocyclic skeleton through a methylene linker, was successfully applied to 1,4-Michael addition reaction of alcohol to unsaturated aryl ketone. Its supramolecular
Ç 1 -对称cyclotriveratrylene类似物2 - 8与一个苯部分各种官能团的制备来自所述选择性脱甲基化化合物开始1。通过化学拆分,可以以克级分离C 1-对称化合物1的一对对映异构体。在大环骨架的上边缘通过亚甲基连接基具有N-连接的咪唑单元的化合物8已成功应用于醇与不饱和芳基酮的1,4-Michael加成反应。其对NHC前体的超分子催化活性通过对芳族醇的化学选择性而不是烷基醇来证明。