Contrary to a reported observation, iodolactonisation of acid (4), an intermediate in trichothecene synthesis, produces the bicyclo[2.2.2]octane framework (12); selenolactonisation proceeds analogously to give (11).
B. A. Brown and E. W. Colvin, J. Chem. Soc., Chem. Commun., 1984, 1514 DOI: 10.1039/C39840001514
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