Abstract
Herein we report that coordinative hemilability allows the MIDA (N-methyliminodiacetic acid) nitrogen to behave as a nucleophile and intramolecularly intercept palladium π-allyl intermediates. A mechanistic investigation indicates that this rearrangement proceeds through an SN2-like displacement at tetrasubstituted boron to furnish novel DABN boronates. Oxidative addition into the N-C bond of the DABN scaffold furnishes borylated π-allyl intermediates that can then be trapped with a variety of nucleophiles, including in a three-component coupling.
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