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Keywords:

  • C[BOND]H activation;
  • carbonylation;
  • heterocycles;
  • heterogeneous catalysis;
  • palladium

Abstract

Thumbnail image of graphical abstract

Pd and CO—ureally got me! The title reaction proceeds efficiently at 18 °C under CO (1 atm) with 5 % [Pd(OTs)2(MeCN)2] as precatalyst. Depending on the solvents used, either anthranilates or cyclic imides can be obtained in high yields (see picture, BQ=benzoquinone, Ts=4-toluenesulfonyl).