3, 3,5 and 2,6 Expanded Aza-BODIPYs Via Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling Reactions: Synthesis and Photophysical Properties
作者:Halil Yılmaz、Gökhan Sevinç、Mustafa Hayvalı
DOI:10.1007/s10895-020-02646-4
日期:2021.1
Novel symmetrical aza-borondipyrromethene (aza-BODIPY) compounds bearing 4-methoxyphenyl, 4-methoxybiphenyl, 2,4-dimethoxybipheny, 4-bromophenyl and N,N-diphenyl-4-biphenylamine groups on the 3, 3,5 and 2,6 positions of aza-BODIPY core were synthesized via Suzuki-Miyaura coupling reactions while unsymmetrical analogues were obtained from the starting mono Br-substituted aza-BODIPY material which was
在3、3、5和2上带有4-甲氧基苯基,4-甲氧基联苯,2,4-二甲氧基联苯,4-溴苯基和N,N-二苯基-4-联苯胺基团的新型对称氮杂-硼二吡啶基亚甲基(aza-BODIPY)化合物通过Suzuki-Miyaura偶联反应合成了6个位置的氮杂-BODIPY核心,同时从起始单Br-取代的氮杂-BODIPY材料中获得了不对称的类似物,所述原料是从亚硝基化的吡咯衍生物获得的。通过1 H-NMR,13 C-NMR,FTIR和HRMS-TOF-ESI技术进行表征。使用吸收和荧光光谱研究了氮杂-BODIPY衍生物的光谱性质。与未取代的类似物相比,具有延长的共轭作用的新型化合物在近红外区域具有宽带吸收,并且在吸收和荧光光谱上显示出明显的变化。在氮杂-BODIPY支架的3,5位上观察到最高的红移,其π-延伸基团和强的给电子基团。取决于与茚并酮核连接的基团的取代位置,发色团的荧光量子产率被确定为剧烈的变化。评价了化合物的单线态氧产生能力,并且2