Novel Synthesis of Pyrido[3,4-d]pyrimidines, Pyrido[2,3-d]pyrimidines, and Quinazolines via Palladium-catalyzed Oxidative Coupling
作者:Kosaku Hirota、Hideki Kuki、Yoshifumi Maki
DOI:10.3987/com-93-s99
日期:——
Oxidative-coupling of 6-azavinyl(or vinyl)-1,3-dimethyluracil derivatives (1, 5, and 7) with electron-deficient olefins in the presence of palladium acetate led to the formation of the corresponding 6-substituted pyrido[3,4-d]pyrimidines (4), pyrido[2,3-d]pyrimidines (6), and quinazolines (8 and 9), respectively, via an intermediacy of azatriene.