Desulfonative Suzuki–Miyaura Coupling of Sulfonyl Fluorides - Archive ouverte HAL
Article Dans Une Revue Angewandte Chemie International Edition Année : 2021

Desulfonative Suzuki–Miyaura Coupling of Sulfonyl Fluorides

Résumé

Sulfonyl fluorides have emerged as powerful “click” electrophiles to access sulfonylated derivatives. Yet, they are relatively inert towards C−C bond forming transformations, notably under transition-metal catalysis. Here, we describe conditions under which aryl sulfonyl fluorides act as electrophiles for the Pd-catalyzed Suzuki–Miyaura cross-coupling. This desulfonative cross-coupling occurs selectively in the absence of base and, unusually, even in the presence of strong acids. Divergent one-step syntheses of two analogues of bioactive compounds showcase the expanded reactivity of sulfonyl fluorides to encompass both S−Nu and C−C bond formation. Mechanistic experiments and DFT calculations suggest oxidative addition occurs at the C−S bond followed by desulfonation to form a Pd-F intermediate that facilitates transmetalation.
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Dates et versions

hal-03468102 , version 1 (06-12-2021)

Identifiants

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Paul Chatelain, Cyprien Muller, Abhijit Sau, Daria Brykczyńska, Maryam Bahadori, et al.. Desulfonative Suzuki–Miyaura Coupling of Sulfonyl Fluorides. Angewandte Chemie International Edition, 2021, 60 (48), pp.25307-25312. ⟨10.1002/anie.202111977⟩. ⟨hal-03468102⟩
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