Abstract
The development of novel redox system is of great significance to the development of organic chemistry. Herein, BiIII/BiV involved redox intermediates has been developed for the oxidative carbonylative coupling of triarylbismuthines. Possible intermediates were prepared and studied. The ArC(O)-BiV species formed by CO insertion proved as the key to reductive elimination progress for the final products formation. Intermolecular aryl exchange between bismuth reagents was also discovered. A most possible reaction mechanism is proposed.
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