Synthesis and Properties of Novel Optically Active Poly(thiophenyleneethynylene-phenyleneethynylene)s

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  • Yoshinori Otaki
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Yu Miyagi
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
  • Fumio Sanda
    Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University

抄録

<jats:title>Abstract</jats:title> <jats:p>The Sonogashira–Hagihara coupling polymerization of l-alanine-derived 2,5-dibromothiophene monomers 1a–1d with p- and m-diethynylbenzenes 2p and 2m gave novel optically active poly(thiophenyleneethynylene-phenyleneethynylene)s poly(1a-2p)–poly(1d-2m). p-Phenylene-linked poly(1b-2p)–poly(1d-2p) bearing amide-amide side chains exhibited CD signals based on chiral aggregates, while the m-phenylene-linked counterparts poly(1b-2m)–poly(1d-2m) exhibited no evidence of the formation of secondary structures. Poly(1a-2p) and poly(1a-2m) bearing amide-ester side chains exhibited no CD signal as well.</jats:p>

収録刊行物

  • Chemistry Letters

    Chemistry Letters 44 (7), 1013-1015, 2015-04-17

    Oxford University Press (OUP)

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