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Synlett 1990; 1990(6): 337-338
DOI: 10.1055/s-1990-21084
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1,2-Aryl Shift in the Hypervalent Iodine Oxidation of Flavanones: A New Useful Synthesis of Isoflavones

Om Prakash* , Saroj Pahuja, Seema Goyal, Shanti N. Sawhney, Robert M. Moriarty
  • *Department of Chemistry, Kurukshetra University, Kurukshetra-132119, Haryana, India
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Publication Date:
08 March 2002 (online)

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Hypervalent iodine oxidation of flavanones 1a-g (2-aryl-2H-1-benzopyran-4(3H)-ones with [hydroxy(tosyloxy) iodo]benzene leads to a 1,2-aryl shift, providing a new useful route to isoflavones 3a-g (3-aryl-4H-1-benzopyran-4-ones).

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