Article Dans Une Revue Chemistry - A European Journal Année : 2022

Visible‐Light‐Initiated Palladium‐Catalyzed Cross‐coupling by PPh3 Uncaging from an Azobenzene Ruthenium–Arene Complex

Résumé

Triphenylphosphine photo-release from a sulfonamide azobenzene ruthenium-arene complex was exploited to activate Pd(II)Cl2 into Pd(0) catalyst, for the photo-initiation of Sonogashira cross-couplings. The transformation was initiated on demand – using simple white LED strip lights – with a high-temporal response and the ability to control reaction rate according to irradiation time. Various substrates were successfully applied to this photo-initiated cross-coupling, illustrating the wide functional group tolerance of our photo-caged catalyst activator, without a need for sophisticated photochemistry apparatus.

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hal-03735834 , version 1 (21-11-2022)

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Lou Rocard, Jérôme Hannedouche, Nicolas Bogliotti. Visible‐Light‐Initiated Palladium‐Catalyzed Cross‐coupling by PPh3 Uncaging from an Azobenzene Ruthenium–Arene Complex. Chemistry - A European Journal, 2022, 28 (41), pp.e202200519. ⟨10.1002/chem.202200519⟩. ⟨hal-03735834⟩
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