Synthesis of α- and/or γ-benzoyloxy-α,β-enones from α-halo-α,β-enones
摘要:
Sodium benzoate reacts with alpha-halo-alpha,beta-enones in the presence of tetrabutylammonium hydrogensulfate or 18-Crown-6 to afford alpha- and/or gamma-benzoyloxy-alpha,beta-enones in good yield. The alpha/gamma and gamma/gamma' selectivities are dependent on the Substrate and reagent. (C) 2004 Elsevier Ltd. All rights reserved.