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Platinum-Catalyzed Chemoselectively Hydrative Dimerization of 2-Alkynyl-1-acetylbenzenes for One-Pot Facile Synthesis of Chrysene Derivatives
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  • 作者：Arindam Das ; Hsuan-Hung Liao ; Rai-Shung Liu
  • 刊名：Journal of Organic Chemistry
  • 出版年：2007
  • 出版时间：November 23, 2007
  • 年：2007
  • 卷：72
  • 期：24
  • 页码：9214 - 9218
  • 全文大小：148K
  • 年卷期：v.72,no.24(November 23, 2007)
  • ISSN：1520-6904
文摘
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We report one-pot syntheses of chrysene compounds via PtCl2-catalyzed hydrative dimerization of readilyavailable 2-alkynyl-1-acetylbenzenes. This new tandem catalysis comprises an initial selective hydrationof the alkyne, followed by chemoselective dimerization of diketone intermediates. The mechanism ofthis cyclization has been elucidated by 13C labeling experiments as well as isolation of reactionintermediates.

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