Abstract

The palladium-catalyzed C-H iodination of 1-arylpyridine N-oxides proceeded under electrochemical oxidation conditions using I2 as an iodine source. The reaction of isoquinoline N-oxides possessing various para- or meta-substituted aryl groups at the 1-position proceeded to give the corresponding iodination products. Electron-donating groups on the aryl group facilitated the reaction to give relatively high yields of the product. The reaction was also found to be applicable to 2-aryl-3-picoline N-oxides.

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