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Synlett 1999; 1999(S1): 863-864
DOI: 10.1055/s-1999-3089
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A Versatile New Synthesis of 3-Aryl-3H-benzofuran-2-ones

Peter Nesvadba* , Lucienne Bugnon, Paul Dubs, Samuel Evans
  • *Ciba Specialty Chemicals Inc., CH-4002 Basel, Switzerland; E-mail: peter.nesvadba@cibasc.com
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Publication History

Publication Date:
31 December 1999 (online)

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Aromatic or heteroaromatic hydrocarbons are easily alkylated with 3-hydroxy-3H-benzofuran-2-ones under Friedel-Crafts or acid catalysis to afford 3-aryl-3H-benzofuran-2-ones in good yield. Access to the starting 3-hydroxy-3H-benzofuran-2-ones is easily achievable by reaction of suitably substituted phenols with glyoxylic acid.

3-aryl-3H-benzofuran-2-ones - 3-hydroxy-3H-benzofuran-2-ones - aromatic hydrocarbon alkylation - polymer stabilizers - Irganox® HP