Palladium-catalyzed cross-coupling of unreactive C(sp3)-H bonds with azole C(sp2)-H bonds by using bromide as a traceless directing group

Chem Commun (Camb). 2022 Jun 8;58(46):6661-6664. doi: 10.1039/d2cc01944b.

Abstract

A palladium-catalyzed intermolecular cross-coupling of unreactive C(sp3)-H bonds and azole C(sp2)-H bonds with bromide as a traceless directing group is described. The judicious selection of the bulky and electron-rich phosphine ligand is the key for the success of this cascade process. The protocol features a broad substrate scope, excellent regioselectivity, and good functional group tolerance.

MeSH terms

  • Azoles
  • Bromides*
  • Catalysis
  • Ligands
  • Palladium* / chemistry

Substances

  • Azoles
  • Bromides
  • Ligands
  • Palladium