the epoxy-endoperoxide formation from the “one pot” reaction of a diene with singlet oxygen was observed. The epoxy-endoperoxide formation mechanism was discussed. CoTPP (Cobalt(II)tetraphenylporphyrin) catalyzed rearrangement of epoxy-endoperoxide gave hydroxy-aldehyde (13) which was oxidized into dialdehyde (14).
钯催化苯并降
冰片二烯的碳甲氧基化(7)得到1,,4-甲基-
1,2,3,4-四氢萘-2,3-二
羧酸二甲酯(9),将其分三步转化为2,3-二亚甲基-1 ,高产率的,4-甲基-
1,2,3,4-四氢萘(4)。4与单线态氧的反应导致形成环氧-过氧化物(12)。X射线晶体学分析表明
环氧化物环是亚甲基桥。首次观察到由二烯与单线态氧的“一锅”反应形成的环氧-过氧化物。讨论了环氧-过氧化物的形成机理。Co
TPP(
钴(II)
四苯基卟啉)催化环氧-内过氧化物的重排得到羟基醛(13),其被氧化为二醛(14)。