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Synthesis 1997; 1997(11): 1305-1308
DOI: 10.1055/s-1997-1337
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A New Synthesis of Flavanones

Daniel Dauzonne* , Claude Monneret
  • *Unité Mixte de Recherche Institut Curie-CNRS (UMR 176), Institut Curie, Section de Recherche, 26 rue d’Ulm, F-75231 Paris Cedex 05, France, Fax +33142346631; E-mail: dauzonne@curie.fr
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Publication History

Publication Date:
31 December 2000 (online)

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Flavanones 2 were synthesized in good yields from 3-chloro-2,3-dihydro-3-nitro-2-phenyl-4H-1-benzopyran-4-ones 1 using a free radical process involving the tributyltin hydride/2,2'-azobisisobutyronitrile system in refluxing benzene.

flavanones - 3-chloro-3-nitroflavanones - reduction - tributyltin hydride - 2,2'-azobisisobutyronitrile

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