Palladium(II)-Catalyzed<i>meta</i>-CH Olefination: Constructing Multisubstituted Arenes through Homo-Diolefination and Sequential Hetero-Diolefination
作者:Milan Bera、Arun Maji、Santosh K. Sahoo、Debabrata Maiti
DOI:10.1002/anie.201503112
日期:2015.7.13
derivatives represent an important class of molecular building blocks in organic chemistry and materials science. Reported herein is the palladium‐catalyzed synthesis of divinylbenzenes by meta‐CH olefination of sulfone‐based arenes. Successful sequential olefinations in a position‐selective manner provided a novel route for the synthesis of hetero‐dialkenylated products, which are difficult to access
二乙烯基苯衍生物代表有机化学和材料科学中一类重要的分子构件。本文报道的是二乙烯基苯通过的钯催化合成的元-C CH类砜芳烃的烯。以位置选择的方式成功进行连续的烯烃聚合为杂二烯基化产物的合成提供了一条新颖的途径,这是常规方法难以达到的。此外,成功除去导向基团后,还可以生成1,3,5-三链烯基化的化合物。