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Synlett 1999; 1999(5): 596-598
DOI: 10.1055/s-1999-2661
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Indoloquinones, Part 6. First Palladium-Mediated Oxidative Cyclization of Arylamino-1,2-benzoquinones to Carbazole-3,4-quinones - Application to the Total Synthesis of Carbazoquinocin C and (±)-Carquinostatin A

Hans-Joachim Knölker* , Kethiri R. Reddy
  • *Institut für Organische Chemie, Universität Karlsruhe, Richard-Willstätter-Allee, D-76131 Karlsruhe, Germany; Fax +49(7 21)6 98-5 29; E-mail: knoe@ochhades.chemie.uni-karlsruhe.de
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Publikationsdatum:
31. Dezember 1999 (online)

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A highly convergent synthesis of the carbazole-3,4-quinone alkaloids carbazoquinocin C and (±)-carquinostatin A is reported using a palladium-mediated oxidative coupling of arylamines and substituted 1,2-benzoquinones.

arylamines - 1,2-benzoquinones - palladium(II) acetate - oxidative cyclization - carbazole alkaloids

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