Arylation of 1,3-Dimethyllumazines by Arenediazonium Salts
摘要:
Reaction of 7-methoxy-1,3-dimethyllumazine with benzenediazonium chloride in an alkaline aqueous solution afforded 6-phenyl- and 6-biphenyl-7-methoxy-1,3-dimethyllumazines. Treatment of 7-dimethylamino-1,3-dimethyllummazine with benzenediazonium chloride similarly gave the 6-phenyl and 6-biphenyl derivatives of the substrate together with 7-methylamino-6-phenyl-1,3-dimethyllumazine. Analogous reactions of 7-substituted 1,3-dimethyllumazines with several arenediazonium chlorides are described.