N-Difluoromethylthiophthalimide Reagents for Modular Synthesis of Diversified α-Difluoromethylthiolated Ketones

Org Lett. 2023 Jul 7;25(26):4797-4802. doi: 10.1021/acs.orglett.3c01468. Epub 2023 Jun 22.

Abstract

The compounds featuring α-difluorothiomethylated ketone skeleton derivatives are of particular interest in pharmaceuticals and agrochemicals. Herein, we designed novel electrophilic N-difluoromethylthiophthalimide reagents that can be easily prepared with commercially available and economical chemicals. These reagents could smoothly react with various nucleophiles, such as Grignard reagents, boronic acids, β-keto esters, and anilines, which affords structurally diverse α-difluoromethylthiolated ketones in good to excellent yields. The formal synthesis of active antifungal compounds positively confirmed the practicability of these reagents.

MeSH terms

  • Catalysis
  • Ketones* / chemistry
  • Phthalimides*
  • Radiopharmaceuticals

Substances

  • N-difluoromethylthiophthalimide
  • Ketones
  • Phthalimides
  • Radiopharmaceuticals