Palladium-Catalyzed Direct Arylation for the Synthesis of Indeno[2,1-b]-pyrrol-8-ones
作者:Junbiao Chang、Chuanjun Song、Li Sun、Jingjing Dong、Zhenhua Shen、Yueteng Zhang、Jie Wu、Ruiyong Wang、Jinqian Wang
DOI:10.1055/s-0032-1317347
日期:——
Treatment of 2-bromophenyl (N-tosylpyrrol-2′-yl)-ketones with Pd(OAc)2, Ph3P, and K2CO3 resulted in the formation of indeno[2,1-b]pyrrol-8-ones in moderate to good yields.
Palladium-catalysed direct arylations of NH-free pyrrole and N-tosylpyrrole with aryl bromides
作者:Charles Beromeo Bheeter、Jitendra K. Bera、Henri Doucet
DOI:10.1016/j.tetlet.2011.11.081
日期:2012.2
The palladium-catalyseddirectcoupling of aryl halides with pyrroles provides a greener access to arylated pyrroles than more classical couplings such as Suzuki, Stille or Negishi reactions. However, so far, NH-free pyrrole and N-tosylpyrrole gave disappointing results for such couplings either in terms of regioselectivity of the arylation, catalyst loading or substrate scope. The reactivity of both