1,2-Dibromotetrachloroethane: An Ozone-Friendly Reagent for the in Situ Ramberg-Bäcklund Rearrangement and Its Use in the Formal Synthesis of E-Resveratrol
Stefan C. Söderman and Adrian L. Schwan*
*Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada, Email: schwanuoguelph.ca
S. C. Söderman, A. L. Schwan, J. Org. Chem., 2012, 77, 10978-10984.
DOI: 10.1021/jo3021852 (free Supporting Information)
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Solid 1,2-dibromotetrachloroethane (C2Br2Cl4) is a suitable halogenating reagent for the one-pot conversion of sulfones to alkenes by way of the Ramberg-Bäcklund rearrangement. Dibromotetrachloroethane successfully replaces known ozone depleting agents CCl4, CBr2F2 and C2Br2F4. A formal synthesis of E-resveratrol is demonstrated.
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