The naturally occurring aurones (2-benzylidene-3 (2H)-benzofuran-3-ones) can be easily converted to another class of natural products 2-benzoylbenzo [b] furans, via an effective reduction, acid-mediated rearrangement, and oxidation cascade. This easy conversion was conducted without purification of intermediates. This straightforward conversion may be considered as a possible biosynthesis pathway of 2-benzoylbenzo [b] furans in plants.
[Younes, S.; Baziard-Mouysset, G.; Saqui-Sannes, G. de; Stigliani, J. L.; Payard, M.; et al. European Journal of Medicinal Chemistry, 1993 , vol. 28, # 12 p. 943 - 948]
[Younes, S.; Baziard-Mouysset, G.; Saqui-Sannes, G. de; Stigliani, J. L.; Payard, M.; et al. European Journal of Medicinal Chemistry, 1993 , vol. 28, # 12 p. 943 - 948]