Regioselective Activation of a Sterically More Hindered C−C Bond of Biphenylenes Using an Alkene as Both a Directing Group and a Reaction Moiety
作者:Hideaki Takano、Takeharu Ito、Kyalo Stephen Kanyiva、Takanori Shibata
DOI:10.1002/chem.201804044
日期:2018.10.12
The Rh‐catalyzed intramolecular reaction of 1‐(2‐vinylaryl)‐substituted biphenylenes was used to construct a dihydrobenzo[b]fluoranthene skeleton. This transformation was achieved by regioselective C−C bond cleavage of a sterically more hindered biphenylene site by using alkene as both a directing group and a reaction moiety. Furthermore, we measured and analyzed the photophysical properties of the
1-(2-乙烯基芳基)取代的联苯的Rh催化的分子内反应被用来构建二氢苯并[ b ]荧蒽骨架。通过使用烯烃作为导向基团和反应部分,通过在空间上更受阻的联苯部位的区域选择性C-C键断裂实现了该转化。此外,我们测量并分析了新型多环稠合化合物的光物理性质。