Synthesis and phototransformations of novel styryl-substituted furo-benzobicyclo[3.2.1]octadiene derivatives
作者:Ilijana Kikaš、Irena Škorić、Željko Marinić、Marija Šindler-Kulyk
DOI:10.1016/j.tet.2010.09.093
日期:2010.11
Novel cis- and trans-(o-H/Me/vinyl) substituted styryl furo-benzobicyclo[3.2.1]octadiene derivatives (7a,b, 8) were prepared and transformed to the novel naphthofuran derivatives of benzobicyclo[3.2.1]octadiene (6a,b) and novel phenanthrene-benzobicyclo[3.2.1]octadiene derivative (11) by photochemical electrocyclic ring closure in the presence of iodine and by intramolecular photoinduced [4+2] cycloaddition
新颖顺-和反式- (ø -H / ME /乙烯基)取代苯乙烯基呋喃并-benzobicyclo [3.2.1]辛二烯衍生物(图7a,b,8)中制备,并转化到benzobicyclo的新颖naphthofuran衍生物[3.2.1]碘存在下,通过光化学电环闭合和分子内光诱导的[4 + 2]环加成反应分别生成辛二烯(6a,b)和新型菲-苯并双环[3.2.1]辛二烯衍生物(11)。这些新型的退火双环[3.2.1]辛二烯衍生物(6a,b,11)尤其有趣的是,它们在定义的几何排列方式下以两个芳香单元的刚性甲醇桥联结出现,因此成为分子夹的潜力。