I. Carelli et al., Electrosynthesis of aromatic aldehydes by palladium-catalyzed carbonylation of aryl iodides in the presence of formic acid, EUR J ORG C, (6), 1999, pp. 1471-1473
The palladium-catalyzed electrocarbonylation of aryl halides performed in t
he presence of formic acid under one atmosphere of carbon monoxide affords
aromatic aldehydes in good to high yields.