ChemInform Abstract: The Phenanthrenone
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J. MULZER; J. W. BATS; B. LIST; T. OPATZ; D. TRAUNER
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Article
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2010
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John Wiley and Sons
⚖ 31 KB
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The Phenanthrenone Approach to Opium Alkaloids: Formal Total Synthesis of Morphine by Sigmatropic Rearrangement. -Eschenmoser-Claisen rearrangement of alcohol (II) and ring closure reaction of epoxide (VII) to give the desired E-ring are the key steps in the preparation of the morphine synthon (VII