作者:Youpeng Li、Youhua Hong、Jing Guo、Xiaobo Huang、Haipeng Wei、Jun Zhou、Tiancheng Qiu、Jishan Wu、Zebing Zeng
DOI:10.1021/acs.orglett.7b02370
日期:2017.10.6
coupling, followed by reduction and nucleophilic substitution. Various bay- and ortho-octasubstituted perylenes containing cyano, methoxy and aryl groups were then obtained by nucleophilic substitution or Pd-catalyzed coupling reactions. X-ray crystallographic analyses reveal that these new perylene molecules process a twisted structure due to steric congestion at the bay-regions and there is no obvious
关键的中间体化合物2,5,8,11-四溴-1,6,7,12-四丁氧基per(Per -4Br )是通过简单的区域选择性氧化自由基由3,6-二溴-2,7-二氧基萘合成的–自由基偶联,然后还原和亲核取代。然后通过亲核取代或Pd催化的偶联反应获得各种含有氰基,甲氧基和芳基的海湾-和邻-八取代的per。X射线晶体学分析表明,这些新的per分子由于海湾区域的空间拥塞而加工出扭曲的结构,并且没有明显的分子间π-π相互作用。结果,即使在固态下,它们也表现出中等的荧光量子产率。所以,Per-4Br可以用作具有可调光电子性质的各种功能ylene染料的通用构建基块。