Thiophene-forming one-pot synthesis of three thienyl-bridged oligophenothiazines and their electronic properties
作者:Dominik Urselmann、Konstantin Deilhof、Bernhard Mayer、Thomas J J Müller
DOI:10.3762/bjoc.12.194
日期:——
The pseudo five-component Sonogashira-Glaser cyclization synthesis of symmetrically 2,5-diaryl-substituted thiophenes is excellently suited to access thienyl-bridged oligophenothiazines in a one-pot fashion. Three thienyl-bridged systems were intensively studied by UV-vis and fluorescence spectroscopy as well as by cyclic voltammetry. The oxidation proceeds with lower oxidation potentials and consistently
对称的2,5-二芳基取代的噻吩的假五组分Sonogashira-Glaser环化合成非常适合以单锅方式访问噻吩基桥接的低聚吩噻嗪。通过紫外-可见光谱和荧光光谱以及循环伏安法深入研究了三个噻吩桥联系统。氧化以较低的氧化电位进行,并且可以识别出始终可逆的氧化。斯托克斯位移很大,可以测量大量的荧光量子产率。计算化学表明,具有S形和螺旋结构的最低能量构象异构体,与低聚吩噻嗪类似。