Palladium-Catalyzed Hydroarylation of Diazocarboxylates and Diazophosphonates

A simple synthetic procedure for the Pd-catalyzed hydroarylation of diazoacetic ester has been previously developed in our laboratory. Now we have applied this methodology for hydroarylation of α-diazocarboxylates/α-diazophosphonates. Diazo compounds reacted with aryl iodides and formic acid to afford diarylated esters or phosphonates in yields up to 71%.

Key words

hydroarylation - diazo compounds - arylacetates - palladium catalysis - cross coupling - phosphonates

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