Regioselective Synthesis of Pyridine-SF4-Methyl Ketones via Hydration of Pyridine-SF4-Alkynes

Org Lett. 2022 May 13;24(18):3347-3352. doi: 10.1021/acs.orglett.2c00998. Epub 2022 Apr 25.

Abstract

Herein, we report the metal-free hydration of pyridine-SF4-alkynes, under acidic conditions and with reaction durations ranging from 5 min to 10 h at room temperature, to synthesize pyridine-SF4-methyl ketones in yields of 59-93%. Further, we demonstrate the synthetic applications of the synthesized pyridine-SF4-methyl ketones, such as chlorination, NaBH4 reduction, Baeyer-Villiger oxidation, and the generation of enol-triflates. These compounds hold promise as useful building blocks in the syntheses of a wide range of SF4-containing drug candidates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alcohols
  • Alkynes*
  • Ketones*
  • Oxidation-Reduction
  • Pyridines

Substances

  • Alcohols
  • Alkynes
  • Ketones
  • Pyridines