Alvi Shakeel, Ali Rashid
Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi-110025, India.
Beilstein J Org Chem. 2024 Aug 29;20:2163-2170. doi: 10.3762/bjoc.20.186. eCollection 2024.
For the first time, herein, we report the synthetic part of the truxene-centred mono-, di- and tri-substituted dipyromethanes (DPMs) in good yields (60-80%) along with their preliminary photophysical (absorption, emission and time resolved fluorescence lifetime) properties. The condensation reaction for assembling the required DPMs were catalyzed with trifluoroacetic acid (TFA) at 0 °C to room temperature (rt), and the stable dipyrromethanes were purified through silica-gel column chromatography. After successfully synthesizing these easy-to-make yet interesting molecules, they were fully characterized by means of the standard spectroscopic techniques (H NMR, C NMR and HRMS). We are of the opinion that these truxene-based systems will be useful for diverse applications in future studies.
在此，我们首次报告了以均三苯为中心的单取代、二取代和三取代二吡咯甲烷（DPMs）的合成部分，产率良好（60 - 80%），并报告了它们初步的光物理性质（吸收、发射和时间分辨荧光寿命）。组装所需DPMs的缩合反应在0°C至室温（rt）下用三氟乙酸（TFA）催化，稳定的二吡咯甲烷通过硅胶柱色谱法纯化。成功合成这些易于制备但有趣的分子后，通过标准光谱技术（1H NMR、13C NMR和HRMS）对它们进行了全面表征。我们认为这些基于均三苯的体系在未来的研究中将有多种用途。
