Triple Oxa[7]helicene with Circularly Polarized Luminescence: Enhancing the Dissymmetry Factors via Helicene Subunit Multiplication
Triple Oxa[7]helicene with Circularly Polarized Luminescence: Enhancing the Dissymmetry Factors via Helicene Subunit Multiplication
复制标题
具有圆偏振发光的三重Oxa[7]螺旋烯：通过螺旋烯亚基倍增增强不对称因子
DOI：
10.1021/acs.orglett.1c01212
复制
发表时间：
2021
期刊：
影响因子：
5.2
通讯作者：
You J
中科院分区：
文献类型：
--
作者：
Zhou F;Huang Z;Huang Z;Cheng R;Yang Y;You J
具有高发光不对称因子（glum）的多个杂螺烯的开发是一个吸引人而又具有挑战性的任务。在此，我们公开了通过[2+2+2]环三聚/分子内双加成环化合成结构不寻常的基于呋喃的三重氧杂[7]螺烯，其代表首次报道的三重杂[7]螺烯。与已报道的双氧杂[7]螺烯相比，三氧杂[7]螺烯的谷值提高了1.8 × 10-3，说明螺烯亚基倍增方法具有提高杂螺烯谷值的潜力。
The development of multiple heterohelicenes with a high luminescence dissymmetry factor (glum) is an appealing yet challenging task. Herein, we disclose the synthesis of a structurally unusual furan-based triple oxa[7]helicene, which represents the first reported triple hetero[7]helicene, via [2+2+2] cyclotrimerization/intramolecular dehydrogenative annulation. Compared to the reported double oxa[7]helicene, the triple oxa[7]helicene exhibits an improvedglumvalue of 1.8 × 10–3, exemplifying the potential of the helicene subunit multiplication approach to enhance theglumof heterohelicenes.