Sterically Controlled Alkylation of Arenes through Iridium-Catalyzed CH Borylation
作者:Daniel W. Robbins、John F. Hartwig
DOI:10.1002/anie.201208203
日期:2013.1.14
one‐pot method for the site‐selective alkylation of arenes controlled by steric effects is reported. The process occurs through Ir‐catalyzed CH borylation, followed by Pd‐ or Ni‐catalyzed coupling with alkyl electrophiles. This selectivity complements that of the typical Friedel–Crafts alkylation; meta‐selective alkylation of a broad range of arenes with various electronic properties and functional
互补化学:报道了一种通过空间效应控制芳烃的位点选择性烷基化的单锅法。发生的过程通过铱催化的Ç ħ硼基化,随后Pd或Ni基催化的亲电子烷基偶联。这种选择性补充了典型的Friedel-Crafts烷基化反应的选择性。元的宽范围的各种电子性质和官能团的芳烃-选择性的烷基化发生在良好的产率与部位选择性高。