Photolysis of 5-bromo-1, 3-dimethyluracil in toluene, xylene and anisole afforded the anormalously substituted 6-aryl-1, 3-dimethyluracils beside the expected products 5-aryl-1, 3-dimethyluracils, while the reaction with veratrole occurred exclusively at the 5-position of the uracil ring.
