Efficient Synthesis of a Regioregular Oligothiophene Photovoltaic Dye Molecule, MK-2, and Related Compounds: A Cooperative Hypervalent Iodine and Metal-Catalyzed Synthetic Route
作者:Toshifumi Dohi、Nobutaka Yamaoka、Shota Nakamura、Kohei Sumida、Koji Morimoto、Yasuyuki Kita
DOI:10.1002/chem.201203503
日期:2013.2.4
We have successfully established an efficient route to the core structure of donor–acceptor head‐to‐tail (H–T)‐linked regioregular oligothiophenes, which includes the following key synthetic steps, that is, hypervalent iodine induced direct and regioselective coupling of thiophenes and the use of the obtained bithiophenes as excellent coupling substrates for the Suzuki and Stille couplings. The versatility
我们已经成功地建立了一条有效的途径,以供体-受体(尾部-尾部)连接的区域规则的寡聚噻吩的核心结构,其中包括以下关键的合成步骤,即高价碘诱导的噻吩的直接和区域选择性偶联以及获得的联噻吩作为Suzuki和Stille偶联剂的优异偶联底物的用途。这种新方法的多功能性在用于光伏应用的高性能有机染料MK-2的产量(约占总产量的59%)的显着提高中得到了突出体现。