Regioselective 2,6-halogenation of BODIPYs in hexafluoro-2-propanol (HFIP) afforded products in less than 5 min. Halogenated BODIPYs were subjected to Pd-catalyzed cross-coupling reactions to form novel meso-alkyl polymeric BODIPY dyes.
Experimental and theoretical study of enol–keto prototropic tautomerism and photophysics of azomethine–BODIPY dyads
作者:Zhong-Hua Pan、Jing-Wei Zhou、Geng-Geng Luo
DOI:10.1039/c4cp02151g
日期:——
Enol ↔ keto prototropic tautomerism can be exploited to modulate the photophysics of BODIPY chromophores based on proton-coupled photoinduced electron transfer processes.
基于质子耦合光诱导电子转移过程,可以利用烯醇↔酮原同分异构来调节 BODIPY 发色团的光物理。
Facile and environmentally friendly halogenation of BODIPYs in deep eutectic solvent
作者:Liang Wang、Kai-qiang Zhu、Qun Chen、Ming-yang He
DOI:10.1016/j.dyepig.2014.07.024
日期:2015.1
A deep eutectic solvent based on choline chloride and 1,1,1,3,3,3-hexafluoro-2-propanol was prepared. This deep eutectic solvent was used as the reaction medium for halogenation of boron dipyrromethene in the presence of N-halosuccinimide, which delivered the corresponding products in good to excellent yields (79-94%) in short reaction time (usually within 30 min). Moreover, this deep eutectic solvent could be easily prepared, recovered and reused for several runs without significant loss in the yields. (C) 2014 Elsevier Ltd. All rights reserved.