Four Iodine-Mediated Electrophilic Cyclizations of Rigid Parallel Triple Bonds Mapped from 1,8-Dialkynylnaphthalenes
作者:Xiaopeng Chen、Ping Lu、Yanguang Wang
DOI:10.1002/chem.201100858
日期:2011.7.11
fluoranthene, indeno[2,1‐a]phenalene, (8H)cyclopenta[a]acenaphthylene, and pyridine[a]acenaphthylene, were efficiently constructed through iodine‐mediated electrophilic cyclizations of 1,8‐dialkynyl naphthalenes in a single step. Theoretical calculations supported our hypothesis that these reactions had high regioselectivity. Oxidative coupling of the fluoranthene skeleton, followed by aromatization, effectively
通过碘介导的1,8的亲电环化反应,有效地构建了四种不同类型的熔融芳烃,包括荧蒽,茚并[2,1- a ]苯,(8 H)环戊[ a ] ac和吡啶[ a ] ac一步合成二炔基萘。理论计算支持了我们的假设,即这些反应具有很高的区域选择性。荧蒽骨架的氧化偶联,然后进行芳构化,有效合成了per衍生物14,该derivative衍生物在二氯甲烷中以597 nm的波长发射,发射效率为0.81,称为5,6,11,12-四苯基萘并列标准。