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Synthesis 1991; 1991(3): 215-216
DOI: 10.1055/s-1991-26424
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Synthesis of Carbazoloquinones via Direct Palladation of 5-Anilino-2-phenylthio-1,4-benzoquinones and of 2-Anilino-1,4-naphthoquinones

Shmuel Bittner* , Penina Krief, Tracy Massil
  • *Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84120, Israel
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Publication Date:
17 September 2002 (online)

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5-Anilino-2-phenylthio-1,4-benzoquinones and 2-anilino-1,4-naphthoquinones 1 undergo a facile one-step oxidative coupling in the presence of palladium(II) acetate to produce a series of substituted 3-phenylthiocarbazole-1,4-diones and benzo[b]carbazole-1,6-diones 2.