[reaction: see text] A novel lactonization of 4-aryl-4-pentenoic acids is described using aryl-lambda(3)-iodanes as reagents for this transformation. The hypervalent iodine species acts as a hypernucleofuge, generating intermediate phenonium ions, which react to aryl-migrated lactones.
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| http://dx.doi.org/10.1021/ol034616f | DOI Listing |
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