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The carbonylation of alkynes using CO2 to generate aurones is unknown. Here, we report palladium-catalyzed carbonylation of terminal aromatic alkynes and the waste hydrosilane, poly(methylhydrosiloxane) (PMHS) with 2-iodophenol using CO2… Click to show full abstract
The carbonylation of alkynes using CO2 to generate aurones is unknown. Here, we report palladium-catalyzed carbonylation of terminal aromatic alkynes and the waste hydrosilane, poly(methylhydrosiloxane) (PMHS) with 2-iodophenol using CO2 to produce aurones. A variety of terminal alkynes and the substituted 2-iodophenols are transformed into aurones in good yields. Preliminary mechanistic studies indicate that silyl formate generated from CO2 and PMHS play a crucial role in carbonylation reaction.
Journal Title: ChemSusChem
Year Published: 2023
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