Vashisth Kanika, Ranasinghe Sameera, Begum Ayesha, Akram Manjur O, Dutton Jason L, Martin Caleb D
Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, TX, 76798, USA.
Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, 3086, Australia.
Chemistry. 2025 Jul 22;31(41):e202501557. doi: 10.1002/chem.202501557. Epub 2025 Jul 2.
This review covers the history of fluorenyl cations from Deno's first report in 1954 on the parent fluorenyl cation to the present. The parent cation and most derivatives have only been observed as a fleeting species by mass spectrometry, UV/Vis spectroscopy, IR spectroscopy, or NMR spectroscopy. The most common synthetic routes to fluorenyl cations are by dehydroxylation and halide abstraction of substituted fluorenyl precursors. Over the 71 year history, many advancements have been made with recent developments leading to isolable species including two characterized by X-ray diffraction. The scope of this review covers the field of fluorenyl cations in addition to related species with different aromatic groups in place of benzene fused to the cycopentadienyl core.
本综述涵盖了芴基阳离子的历史，从1954年德诺首次报道母体芴基阳离子至今。母体阳离子及其大多数衍生物仅通过质谱、紫外/可见光谱、红外光谱或核磁共振光谱作为一种短暂存在的物种被观测到。合成芴基阳离子最常见的途径是通过取代芴基前体的脱羟基和卤化物提取。在这71年的历史中，取得了许多进展，最近的发展导致了可分离的物种，包括两种通过X射线衍射表征的物种。除了用不同芳香基团取代与环戊二烯基核稠合的苯的相关物种外，本综述的范围还涵盖了芴基阳离子领域。
