Abstract
A study was carried out on the electrophilic substitution reactions in benzene and toluene by the action of ClCH2OCH3 in the presence of trivalent lanthanide salts, LnCl3, where Ln=Ce, Dy, Er, and Sm(O3SCF3)3 as the catalysts, at room temperature over 24 h. These lanthanide salts display the properties of weak but hard Lewis acids. The reaction proceeds exclusively by chloromethylation with the subsequent formation of diarylmethanes.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 706–708, March, 1990.
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Davydov, D.V., Vinogradov, S.A. & Beletskaya, I.P. Catalytic activity of trivalent lanthanide salts in the chloromethylation of aromatic hydrocarbons. Russ Chem Bull 39, 627–628 (1990). https://doi.org/10.1007/BF00959602
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DOI: https://doi.org/10.1007/BF00959602