Rearrangement of unsaturated cyclic peroxides obtained by photooxygenation of 2,3-dimethylene-7-oxabenzonorbornene and 2,3-dimethylene-1,4-etheno-1,2,3,4-tetrahydronaphthalene
作者:Recep Özen、Fatma Kormalı (Bayramoğlu)、Metin Balci、Basri Atasoy
DOI:10.1016/s0040-4020(01)00702-5
日期:2001.8
Cobalt(II) tetraphenylporphyrin (CoTPP)-catalyzed rearrangement of peroxide 11 obtained by the photooxygenation of 5 gave a mixture of epoxides 15 (or 16) and 17. However, CoTPP-catalyzed rearrangement of peroxide 20 arising by photooxygenation of 2,3-dimethylene-1,4-etheno-1,2,3,4-tetrahydronaphthalane 6 gave 1,4-etheno-1,2,3,4-tetrahydronaphtho[b]-furan 21. The different behaviour of these endoperoxides
钴(II)四苯基卟啉(CoTPP)催化的过氧化物11的重排是由5的光氧合得到的,形成了环氧化合物15(或16)和17的混合物。过氧化物然而,的CoTPP催化重排20由2,3-二亚甲基-1,4-亚乙烯基-1,2,3,4- tetrahydronaphthalane的光氧化引起的6得到的1,4-亚乙烯基-1,2,3,4-四氢萘并[ b ]-呋喃21。这些内过氧化物11和20的不同行为将根据环应变和CC键的锥体化程度进行讨论。