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Keywords:

  • aryl alkyl ketones;
  • catalysis;
  • cross-ketonisation;
  • decarboxylation;
  • iron

Abstract

In the presence of catalytic amounts of magnetite nanopowder, mixtures of aromatic and aliphatic carboxylic acids are converted selectively into the corresponding aryl alkyl ketones. As by-products, only carbon dioxide and water are released. This catalytic cross-ketonisation allows the regioselective acylation of aromatic systems and, thus, represents a sustainable alternative to Friedel–Crafts acylations.