Nickel-catalyzed chelation-assisted transformations involving ortho C-H bond activation: regioselective oxidative cycloaddition of aromatic amides to alkynes

J Am Chem Soc. 2011 Sep 28;133(38):14952-5. doi: 10.1021/ja206850s. Epub 2011 Sep 7.

Abstract

Although the pioneering example of ortho metalation involving cleavage of C-H bonds was achieved using a nickel complex (Kleiman, J. P.; Dubeck, M. J. Am. Chem. Soc. 1963, 85, 1544), no examples of catalysis using nickel complexes have been reported. In this work, the Ni-catalyzed transformation of ortho C-H bonds utilizing chelation assistance, such as oxidative cycloaddition of aromatic amides with alkynes, has been achieved.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkynes / chemistry*
  • Amides / chemistry*
  • Catalysis
  • Chelating Agents / chemistry*
  • Cyclization
  • Isoquinolines / chemical synthesis*
  • Isoquinolines / chemistry
  • Molecular Structure
  • Nickel / chemistry*
  • Organometallic Compounds / chemistry*
  • Oxidation-Reduction
  • Stereoisomerism

Substances

  • Alkynes
  • Amides
  • Chelating Agents
  • Isoquinolines
  • Organometallic Compounds
  • Nickel