Catalytic activity of trivalent lanthanide salts in the alkylation reactions of aromatic hydrocarbons by the action of a mixture of an acyl halide and benzaldehyde

  • D. V. Davydov
  • S. A. Vinogradov
  • I. P. Beletskaya
Brief Communications


A study was carried out on the electrophilic substitution reactions of benzene and toluene by the action of a mixture of an acyl halide and benzaldehyde in the presence of trivalent lanthanide salts LnCl3, where Ln=Ce, Dy, Er, Sm, Yb, and Yb(O3SCF3)3, as catalysts at 40‡C over 24 h. The reaction stops at the formation of the corresponding triarylmethane compounds. A mechanism was proposed for this reaction. Lanthanide salts were found not to catalyze the usual Friedel-Crafts acylation of arenes.


Benzene Toluene Hydrocarbon Catalytic Activity Aromatic Hydrocarbon 
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Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • D. V. Davydov
    • 1
  • S. A. Vinogradov
    • 1
  • I. P. Beletskaya
    • 1
  1. 1.M. V. Lomonosov Moscow State UniversityUSSR

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