Frédéric Lucas, Fabri Bibiana, Guénée Laure, Zinna Francesco, Di Bari Lorenzo, Lacour Jérôme
Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211, Geneva 4, Switzerland.
Laboratoire de Cristallographie, University of Geneva, Quai Ernest Ansermet 24, 1211, Geneva 4, Switzerland.
Chemistry. 2022 Oct 7;28(56):e202201853. doi: 10.1002/chem.202201853. Epub 2022 Aug 18.
In essentially one-pot, using Ir- and Pd-catalysis, tris(arene)-functionalized cationic [4]helicenes are synthesized with full regioselectivity and enantiospecificity starting from a trivial precursor (17 examples). This poly-addition of aryl groups improves key optical properties, that is, fluorescence quantum yields and lifetimes. Electronic circular dichroism and circularly polarized luminescence signatures are observed up to the far-red domain, in particular with additional arenes prone to aggregation.
基本上通过一锅法，利用铱和钯催化，从一种简单的前体出发，以完全的区域选择性和对映体特异性合成了三（芳烃）官能化的阳离子[4]螺旋烯（17个实例）。芳基的这种多加成改善了关键的光学性质，即荧光量子产率和寿命。在远红区域都观察到了电子圆二色性和圆偏振发光信号，特别是对于易于聚集的额外芳烃。
