mercury lamp afforded 3-methoxy-6-phenyl-Δ3,6-bicyclo[3.2.0]heptadiene-2-one (II). This is the first example giving type C photo-valence isomerization in the photo-reaction of a simple troponoid system. Photochemistry of 5-phenyltropolone (IX) was also studied, where both type B and C valence isomerization were observed and the reaction pathway is discussed.
已经将5-苯基tropolone甲基醚(I)的光
化学与
秋水仙碱和异
秋水仙碱的光
化学进行了比较。使用高压
汞灯在
甲醇中辐照I,得到3-甲氧基-6-苯基-Δ3,6-双环[3.2.0]庚二烯-2-酮(II)。这是在简单的类肌
钙蛋白体系的光反应中给出C型光价异构化的第一个例子。还研究了5-苯基tropolone(IX)的光
化学,其中观察到B型和C型化合价均异构化并讨论了反应途径。