Abstract
Herein are reported examples of the nickel- and palladium-catalyzed cross-coupling of aryl fluorosulfonates and aryl boronic acids. These reactions occur in good to excellent yields under mild conditions with excellent functional group compatibility employing either Pd(OAc)2 and inexpensive PPh3 or the inexpensive and readily available NiCl2(PCy3)2. Importantly, the in situ conversion of phenol derivatives to the corresponding aryl fluorosulfonate by reaction with sulfuryl fluoride and a base and subsequent cross-coupling to form biaryls in a single pot are described. The combination of inexpensive sulfuryl fluoride and efficient catalysts reported in these methodologies will enable economical Suzuki coupling of phenols in pharmaceutical and agrochemical processes.
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