Ring-Expansion Strategy for α-Aryl Azahelicene Construction: Building Blocks for Optoelectronic Materials
Ring-Expansion Strategy for α-Aryl Azahelicene Construction: Building Blocks for Optoelectronic Materials
复制标题
DOI：
10.1021/acs.orglett.1c03070
复制
发表时间：
2021-10-05
期刊：
影响因子：
5.2
通讯作者：
Gu, Zhenhua
中科院分区：
文献类型：
--
作者：
Feng, Jia;Wang, Limin;Gu, Zhenhua
报道了一种酸介导的通过9 H-芴-9-醇的C-C键断裂快速合成α-芳基氮杂螺烯的方法。新引入的芳基环和吡啶部分提供了进一步调节氮杂螺旋的性质的极好机会：即，光致发光新型α-芳基氮杂螺烯显示出高的圆偏振发光（CPL）效率（4.5 × 10（-3））以及CPL亮度（BCPL），达到7.39 M-1 cm（-1），这表明作为手性发射体的潜在应用。
An acid-mediated rapid synthesis of alpha-aryl azahelicenes via C-C bond cleavage of helical 9H-fluoren-9-ols is reported. The newly introduced aryl ring and pyridine moieties provide an excellent opportunity to further tune the properties of azahelicences: i.e., photoluminescence. The novel alpha-aryl azahelicenes showcase high circularly polarized luminescence (CPL) efficiencies (4.5 x 10(-3)) as well as CPL brightness (BCPL), reaching 7.39 M-1 cm(-1), which indicates a potential application as chiral emitters.