Abstract

Palladium-catalyzed carbonylative cross-methylation reactions of different chloroarene-Cr(CO) 3 complexes employing an intramolecularly stabilized dimethylindium (III) reagent have been studied. The coupling products (acetophenone derivatives) were isolated in 43-96% yield under standard reaction conditions (5 mol% PdCl 2 (PPh 3 ) 2 , 50 °C, 5 atm CO-pressure in THF). Also, carbonylative Suzuki-coupling reactions of phenylboronic acid with different chloroarene-Cr(CO) 3 complexes afforded the corresponding benzophenone derivatives in 48-78% yield under comparable conditions in the presence of potassium carbonate as a base.

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