Synthesis and Chiroptical Properties of a Saddle-Shaped Quadruple Helicene with a Cyclooctatetrapyrrole Core

作者：Xu‐Lang Chen, Si-Qian Yu, Zhao-Yi Cheng, Zi-You Zheng, An‐Na Chen, Jinku Bai, Jiaqi Liang, Chunyang Zheng, Xiaohuan Huang, Han‐Yuan Gong · 发表于：Organic Letters · 年份：2025 · DOI：10.1021/acs.orglett.5c00294 · 被引用次数：6 · 研究领域：Synthesis and Properties of Aromatic Compounds、DNA and Nucleic Acid Chemistry、Axial and Atropisomeric Chirality Synthesis

A quadruple helicene with a cyclooctatetrapyrrole core was synthesized via a simple Ullmann reaction. Its single-crystal structure exhibits a saddle shape. The compound shows fluorescence emission with λ em = 575 nm and good chiroptical properties, including a dissymmetric absorption factor (| g abs |) of 5.84 × 10 –3 and a dissymmetric emission factor (| g lum |) of 1.21 × 10 –2 .