Synthesis of the novel conjugated ω,ω′-diaryl/heteroaryl hexatriene system with the central double bond in a heteroaromatic ring: photochemical transformations of 2,3-divinylfuran derivatives
作者:Irena Škorić、Ivana Flegar、Željko Marinić、Marija Šindler-Kulyk
DOI:10.1016/j.tet.2006.05.034
日期:2006.7
New β,β′-aryl/heteroaryl 2,3-divinylfuran derivatives (9a–d) in which a hexatriene system is a part of heteroaromatic ring have been synthesized and their photochemical properties were investigated. The primary process observed was the isomerization to trans,trans-isomers 9a–d followed by photochemical rearrangement of the furan ring giving the phototransposition products (I–IV). Stilbenes (20, 21)
合成了新的β,β′-芳基/杂芳基2,3-二乙烯基呋喃衍生物(9a – d),其中己三烯系统是杂芳环的一部分,并对其光化学性质进行了研究。观察到的主要过程是异构化为反式,反式异构体9a – d,然后呋喃环发生光化学重排,从而得到光转座产物(I – IV)。芪(20,21)和菲(22,25,和26也观察到了由竞争性分子间环加成反应形成的副产物)。