Application of cooperative iron/copper catalysis to a palladium-free borylation of aryl bromides with pinacolborane.
A new cooperative copper/iron catalysis, comprising CuI/Fe(acac)3 mixts. modified with diamines, provides facile access to arylboronates ArBpin bromine for boron substitution in reaction of ArBr with HBpin at -10°C. Use of the toxic, precious metal Pd is avoided. The mechanisms of the borylation and protodebromination side reaction, giving arenes ArH, are discussed on the basis of calcd. potential energy surfaces.
Références
- Titre
- Application of cooperative iron/copper catalysis to a palladium-free borylation of aryl bromides with pinacolborane.
- Type de publication
- Article de revue
- Année de publication
- 2014
- Auteurs
- Labre, Flavien, Gimbert Yves, Bannwarth Pierre, Olivero Sandra, Dunach Elisabet, and Chavant Pierre-Yves
- Revue
- Org. Lett.
- Volume
- 16
- Pagination
- 2366–2369
- ISSN
- 1523-7052
Soumis le 12 avril 2018