4.7 Article

Intramolecular ipso-arylative cyclization of aryl-alkynoates and N-arylpropiolamides with aryldiazonium salts through merged gold/visible light photoredox catalysis

Journal

CHEMICAL COMMUNICATIONS
Volume 53, Issue 65, Pages 9081-9084

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc04010e

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Funding

  1. Board of Research in Nuclear Science (BRNS), Mumbai [37(2)/14/12/2015/BRNS/10549]
  2. CSIR

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A visible-light-promoted merged gold/photoredox catalyzed ipsoarylative cyclization has been reported. For instance, the reaction of aryl-alkynoates and N-arylpropiolamides with aryldiazonium salts in the presence of catalytic amounts of [(4-OCH3)C6H4](3)PAuCl and Ru(bpy)(3)(PF6)(2) under irradiation using a 32WCFL bulb gave arylated spirocarbocycles in moderate to good yields.

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