Highly selective and efficient conversion of aryl bromides to t-butyl benzoates with di-t-butyl dicarbonate
作者:Hongmei Li、Jaume Balsells
DOI:10.1016/j.tetlet.2007.12.134
日期:2008.3
t-Butyl benzoates can be accessed from aromatic compounds bearing multiple halogen substituents via selective metal–halogen exchange with lithium tri-n-butylmagnesium ate complex followed by trapping with di-t-butyl dicarbonate.
Nickel-Catalyzed Mizoroki–Heck/Amination Cascade Reactions of <i>o</i>-Dihaloarenes with Allylamines: Synthesis of Indoles
作者:Xu Chen、Jin Lin、Biao Wang、Xu Tian
DOI:10.1021/acs.orglett.0c02909
日期:2020.10.2
An efficient Mizoroki–Heck/amination cascade reaction of o-dihaloarenes with allylamines has been developed using nickel and IPr carbene ligand as catalyst. This protocol enables the synthesis of a broad range of substituted indoles by a cascade process, from readily available starting materials. Mechanistic studies suggest that the Mizoroki–Heck reaction occurred first under IPr-nickel catalysis.