Visible‐Light‐Initiated Palladium‐Catalyzed Cross‐coupling by PPh(3) Uncaging from an Azobenzene Ruthenium–Arene Complex

Photo‐release of triphenylphosphine from a sulfonamide azobenzene ruthenium–arene complex was exploited to activate Pd(II)Cl(2) into Pd(0) catalyst, for the photo‐initiation of Sonogashira cross‐coupling. The transformation was initiated on demand – by using simple white LED strip lights – with a hi...

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Detalles Bibliográficos
Autores principales: Rocard, Lou, Hannedouche, Jérôme, Bogliotti, Nicolas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9400985/
https://www.ncbi.nlm.nih.gov/pubmed/35543416
http://dx.doi.org/10.1002/chem.202200519
Descripción
Sumario:Photo‐release of triphenylphosphine from a sulfonamide azobenzene ruthenium–arene complex was exploited to activate Pd(II)Cl(2) into Pd(0) catalyst, for the photo‐initiation of Sonogashira cross‐coupling. The transformation was initiated on demand – by using simple white LED strip lights – with a high temporal response and the ability to control reaction rate by changing the irradiation time. Various substrates were successfully applied to this photo‐initiated cross‐coupling, thus illustrating the wide functional‐group tolerance of our photo‐caged catalyst activator, without any need for sophisticated photochemistry apparatus.

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