Copper-catalyzed cascade preparation of dihydropyrimidin-4-ones from N -(Prop-2-yn-1-yl)amides and azides

  • Jinjin Wang
  • , Jing Wang
  • , Ping Lu*
  • , Yanguang Wang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

Dihydropyrimidin-4-ones were efficiently synthesized from copper catalyzed reaction between N-(prop-2-yn-1-yl)amides and sulfonylazides under mild conditions in moderate to excellent yields (up to 96% yields). The cascade process involves the copper-catalyzed alkyne-azide cycloaddition, the formation of ketenimine intermediate, the intramolecular nucleophilic addition of ketenimine, and subsequent rearrangement.

Original languageEnglish
Pages (from-to)8816-8820
Number of pages5
JournalJournal of Organic Chemistry
Volume78
Issue number17
DOIs
Publication statusPublished - 6 Sept 2013
Externally publishedYes

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