Synthesis of Diiodinated All-Carbon 3,3′-Diphenyl-1,1′-spirobiindene Derivatives via Cascade Enyne Cyclization and Electrophilic Aromatic Substitution
作者:Quanzhe Li、Liuzhu Yu、Yin Wei、Min Shi
DOI:10.1021/acs.joc.9b01418
日期:2019.7.19
from the reaction of propargyl alcohol-tethered alkylidenecyclopropanes with iodine. The reaction proceeded through an iodination-initiated cascade intramolecular enyne cyclization and electrophilic aromatic substitution reaction process in 1,2-dichloroethane upon heating, giving desired spirocyclic products in moderate to excellent yields. Further transformation of the obtained products has also been
从炔丙醇系链的亚烷基亚环丙烷与碘的反应中,已经开发出一种用于合成二碘代全碳螺双联二烯衍生物的合成方法。该反应通过在1,2-二氯乙烷中加热时由碘化引发的级联分子内烯炔环化和亲电子芳族取代反应过程进行,以中等至优异的产率得到所需的螺环产物。还提出了所得产物的进一步转化。