Recent Advances in Photoredox-Mediated Radical Conjugate Addition Reactions: An Expanding Toolkit for the Giese Reaction

Angew Chem Int Ed Engl. 2021 Sep 20;60(39):21116-21149. doi: 10.1002/anie.202016666. Epub 2021 Jul 21.

Abstract

Photomediated Giese reactions are at the forefront of radical chemistry, much like the classical tin-mediated Giese reactions were nearly forty years ago. With the global recognition of organometallic photocatalysts for the mild and tunable generation of carbon-centered radicals, chemists have developed a torrent of strategies to form previously inaccessible radical intermediates that are capable of engaging in intermolecular conjugate addition reactions. This Review summarizes advances in photoredox-mediated Giese reactions since 2013, with a focus on the breadth of methods that provide access to crucial carbon-centered radical intermediates that can engage in radical conjugate addition processes.

Keywords: Giese reaction; photocatalysis; photoredox catalysis; radical Michael addition; radical conjugate addition.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • Carbon / chemistry*
  • Free Radicals / chemistry
  • Molecular Structure
  • Oxidation-Reduction
  • Photochemical Processes

Substances

  • Free Radicals
  • Carbon