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A Nickel-Based, Tandem Catalytic Approach to Isoindolinones from Imines, Aryl Iodides, and CO
We describe herein a modular nickel-catalyzed
synthesis of isoindolinones
from imines, aryl iodides, and CO. This reaction is catalyzed by NiÂ(1,5-cyclooctadiene)<sub>2</sub> in concert with chloride salts and postulated to proceed
via a tandem nickel-catalyzed carbonylation to form <i>N</i>-acyl iminium chloride salts, followed by a spontaneous nickel-catalyzed
cyclization. A range of aryl iodides and imines have been found to
be viable substrates in this reaction, providing a modular route to
generate substituted isoindolinones with high atom economy