分别制备了两个系列的带有芴(Fl-Xs)或蒽(An-Xs)核心单元的可溶性和热稳定不对称芳基乙炔衍生物,并用不同的电子活性基团(X = NO 2,CN,CHO和OR)末端取代。综合和表征。在两种不同极性的溶剂中研究了这些化合物的光谱和光物理行为,以评估它们是否可作为活性物质在光电器件中的作用候选。主要在硝基-蒽基和芴基衍生物中发现了在极性溶剂中强烈稳定的分子内电荷转移态的存在。还通过半经验量子力学计算获得了激发态性质及其失活通道的完整图像。
Click-Reagent Version of Sonogashira Coupling Protocol to Conjugated Fluorescent Alkynes with No or Reduced Homocoupling
摘要:
A click-reagent version of the Sonogashira-coupling protocol has been developed. Diarylalkynes with donor and/or acceptor substituents have been synthesized via this protocol at moderate to excellent yields and with no or drastically reduced quantities of undesired homocoupled side products. This protocol is green-solvent compatible, air-insensitive, and effective under microwave conditions.
Click-Reagent Version of Sonogashira Coupling Protocol to Conjugated Fluorescent Alkynes with No or Reduced Homocoupling
作者:Subhendu Sekhar Bag、Rajen Kundu、Manas Das
DOI:10.1021/jo200005n
日期:2011.4.1
A click-reagent version of the Sonogashira-coupling protocol has been developed. Diarylalkynes with donor and/or acceptor substituents have been synthesized via this protocol at moderate to excellent yields and with no or drastically reduced quantities of undesired homocoupled side products. This protocol is green-solvent compatible, air-insensitive, and effective under microwave conditions.
Synthesis and photobehaviour of donor-π-acceptor conjugated arylacetylenes
Two series of soluble and thermally stable asymmetric arylacetylene derivatives bearing a fluorene (Fl-Xs) or an anthracene (An-Xs) core unit and end-substituted with different electronically active groups (X = NO2, CN, CHO and OR) were synthesized and characterized. The spectral and photophysical behaviour of these compounds was studied in two solvents of different polarity to evaluate them as candidates
分别制备了两个系列的带有芴(Fl-Xs)或蒽(An-Xs)核心单元的可溶性和热稳定不对称芳基乙炔衍生物,并用不同的电子活性基团(X = NO 2,CN,CHO和OR)末端取代。综合和表征。在两种不同极性的溶剂中研究了这些化合物的光谱和光物理行为,以评估它们是否可作为活性物质在光电器件中的作用候选。主要在硝基-蒽基和芴基衍生物中发现了在极性溶剂中强烈稳定的分子内电荷转移态的存在。还通过半经验量子力学计算获得了激发态性质及其失活通道的完整图像。