作者:Akihiko Ishii、Kiyoto Maeda、Juzo Nakayama、Masamatsu Hoshino
DOI:10.1246/cl.1993.681
日期:1993.4
Photoirradiation of 4,8-dihydro-4,8[3′,2′]thiophenobenzo[1,2-b:5,4-b′]dithiophenes (thiophenetriptycenes) results in di-π-methane rearrangement to provide the corresponding semibullvalenes. In the initial stage of the di-π-methane rearrangement, C(7a)-C(8a) bridging occurs exclusively regardless of bridgehead substituents.
4,8-二氢-4,8[3',2']噻吩苯并[1,2-b:5,4-b']二噻吩(噻吩三苯)的光照射导致二-π-甲烷重排,提供相应的半价烯. 在二-π-甲烷重排的初始阶段,C(7a)-C(8a) 桥接只发生与桥头取代基无关。