Add time:09/09/2019 Source:sciencedirect.com
Sodium benzoate reacts with α-halo-α,β-enones in the presence of tetrabutylammonium hydrogensulfate or 18-Crown-6 to afford α- and/or γ-benzoyloxy-α,β-enones in good yield. The α/γ and γ/γ′ selectivities are dependent on the substrate and reagent.
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