A new approach to the total synthesis of (±)-neorautenane 14 is described, using the chemo-selective coupling of benzodipyran 12 and o-chloromercuriophenol 13 as the key step. Compound 12 is synthesized in four steps from chromanone 7.
R. A. Lichtenfels, A. L. Coelho and P. R. R. Costa, J. Chem. Soc., Perkin Trans. 1, 1995, 949 DOI: 10.1039/P19950000949
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