Palladium(II)-catalyzed oxidative homo-coupling of 1,3-dimethyluracil derivatives

A palladium-catalyzed oxidative homo-coupling of 1,3-dimethyluracil was examined. Two types of uracil dimer, C5–C5′ linked dimer and C5–C6′ linked dimer were obtained in variable yields depending on the conditions along with a low yield of C5–C5′ and C6–C5′ linked uracil trimer.