Inherent vs Apparent Chemoselectivity in the Kumada-Corriu Cross-Coupling Reaction
XiYe Hua1, Jeanne Masson-Makdissi1, Ryan J Sullivan1
1Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa , 10 Marie-Curie, Ottawa, Ontario, Canada , K1N 6N5.
Abstract:
The Kumada-Corriu reaction is a powerful tool for C-C bond formation, but is seldom utilized due to perceived chemoselectivity issues. Herein, we demonstrate that high-yielding couplings can occur in the presence of many electrophilic and heterocyclic functional groups. Our strategy is mechanically based, matching oxidative addition rates with the rate of syringe pump addition of the Grignard reagent. The mechanistic reason for the effectiveness of this strategy is uncovered by continuous-infusion ESI-MS studies.
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