Lanthanide(III) Nitrobenzenesulfonates as New Nitration Catalysts: The Role of the Metal and of the Counterion in the Catalytic Efficiency

  title={Lanthanide(III) Nitrobenzenesulfonates as New Nitration Catalysts: The Role of the Metal and of the Counterion in the Catalytic Efficiency},
  author={Tatjana N. Parac‐Vogt and Sophia Pachini and Peter Nockemann and Kristof Van Hecke and Luc van Meervelt and Koen Binnemans},
  journal={European Journal of Organic Chemistry},
Keywords: Homogeneous catalysis / Lanthanides / Lewis acids / Electrophilic substitution / Nitration / Rare earths Lanthanide(III) complexes of p-nitrobenzenesulfonic acid, Ln(p-NBSA)3, m-nitrobenzenesulfonic acid, Ln(m-NBSA)3, and 2,4-nitrobenzenesulfonic acid, Ln(2,4-NBSA)3, were prepared, characterized and examined as catalyst for the nitration of benzene, toluene, xylenes, naphthalene, bromobenzene and chlorobenzene. The initial screening of the catalysts showed that lanthanum(III… 

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