Synthesis of Densely Functionalized Pyrimidouracils by Nickel(II)-Catalyzed Isocyanide Insertion

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Abstract
A robust nickel-catalyzed oxidative isocyanide insertion/C–H amination by reaction of readily available N-uracil-amidines with isocyanides affording polysubstituted pyrimidouracils has been reported. The reaction proceeds in moderate to quantitative yield, under mild conditions (i.e., green solvent, air atmosphere, moderate temperature). The broad range of structurally diverse isocyanides and N-uracil-amidines that are tolerated make this method an interesting alternative to the currently available procedures toward pyrimidouracils.
Funding Information
  • FP7 Joint Technology Initiatives (115360)
  • Universiteit Antwerpen
  • Fonds Wetenschappelijk Onderzoek
  • European Federation of Pharmaceutical Industries and Associations
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
  • Francqui Foundation

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