Arylboration and arylsilylation reactions of N-(2iodoaryl)acrylamides with bis(pinacolato)-diboron (B 2 pin 2 ) or PhMe 2 Si-Bpin are developed by using simple CuOAc as the sole catalyst. A range of boron-or silane-bearing 3,3′-disubstituted oxindoles are obtained in moderate to excellent yields. The reaction is proposed to proceed via a domino sequence involving intermolecular olefin borylcupration or silylcupration followed by intramolecular coupling of an alkyl-Cu intermediate with aryl iodide.
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