作者:Bigyan Sharma、Kazuya Tazoe、Xing Feng、Taisuke Matsumoto、Junji Tanaka、Takehiko Yamato
DOI:10.1016/j.molstruc.2012.12.054
日期:2013.4
Polymethyl substituted [2.2]metaparacyclophanes were synthesized via the corresponding 2,11-dithia [3.3]metaparacyclophanes. Photooxygenation reaction of 4,5,6,12,13,15,16-heptamethyl[2.2]metaparacyclophane using a high pressure mercury lamp led to the mono-endoperoxidation of only the para benzene ring; this was attributed to the much larger degree of deformation of the para-benzene ring than of the meta-benzene
摘要 通过相应的 2,11-二硫杂 [3.3] 间对环芳合成了多甲基取代的 [2.2] 间对环芳。使用高压汞灯的 4,5,6,12,13,15,16-七甲基 [2.2] 间对环烷的光氧化反应导致仅对苯环的单内过氧化;这归因于对苯环的变形程度比间苯环大得多。另一方面,4,5,6,8,12,13,15,16-octamethyl[2.2]metaparacyclophane 在相同反应条件下的光反应辐照仅产生双内过氧化物(在间位和对苯环)。