A Palladium Bipyridyl Complex Grafted onto Nanosized MCM-41 as a Heterogeneous Catalyst for Negishi Coupling

Wei Yi Wu, Tze Chiao Lin, Tamotsu Takahashi, Fu Yu Tsai, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

15 引文 斯高帕斯(Scopus)

摘要

The Negishi coupling of aryl bromides or acyl chlorides with organozinc chlorides catalyzed by a palladium bipyridyl complex anchored on nanosized mobile crystalline material 41 (MCM-41) were investigated. The reactions proceeded smoothly with a very low catalyst loading in THF at 70°C for electron-deficient aryl bromides, which gave good to high yields of the Negishi coupling products. However, reactions in toluene at 110°C were required if electron-rich aryl bromides were employed. For acyl chlorides, the reactions could be performed in THF at 50°C and the corresponding ketones and ynones were obtained in high yields. After centrifugation, it was possible to easily recover the supported catalyst from the reaction mixture, and this could be reused several times without any retreatment or regeneration with only a slight decrease in activity.

原文英語
頁(從 - 到)1011-1019
頁數9
期刊ChemCatChem
5
發行號4
DOIs
出版狀態已發佈 - 4月 2013
對外發佈

ASJC Scopus subject areas

  • 催化
  • 物理與理論化學
  • 有機化學
  • 無機化學

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