Photoredox-Ni Dual Catalysis: Chelation-Free Hydroacylation of Terminal Alkynes

Org Lett. 2022 Nov 18;24(45):8435-8440. doi: 10.1021/acs.orglett.2c03481. Epub 2022 Nov 7.

Abstract

Hydroacylation of alkynes is undoubtedly the simplest and most atom-efficient approach for the synthesis of enones with diverse synthetic applications. Despite significant progress in hydroacylations, no hydroacylations exist that make use of aldehydes without a chelating group, especially when combined with terminal alkynes. Here we report a synergistic nickel-photocatalytic system that allows for the highly regio- and stereoselective hydroacylation of unactivated aldehydes and alkynes in milder conditions without the use of chelating groups.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aldehydes*
  • Alkynes*
  • Catalysis
  • Chelating Agents
  • Molecular Structure

Substances

  • Alkynes
  • Aldehydes
  • Chelating Agents