Chemoselectivity in the rhodium(II) acetate catalysed decomposition of α-diazo-β-keto-γ,δ-alkenyl-δ-aryl compounds: Aromatic C-H insertion reaction or Wolff rearrangement-electrocyclization

Article abstract of DOI:10.1016/0040-4020(96)00581-9

The rhodium(II) acetate catalysed decomposition of α-diazo-β-keto-γ,δ-alkenyl phosphonates 1 substituted in the δ-position by an aryl group gave rise to mixtures of isomeric hydroxynaphthalenephosphonates, 3 resulting from a Wolff rearrangement-electrocyc