Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
最新号
選択された号の論文の41件中1~41を表示しています
Highlight Review
  • Hayato Ouchi, Xu Lin, Shiki Yagai
    2019 年 48 巻 9 号 p. 1009-1018
    発行日: 2019/09/05
    公開日: 2019/09/05
    ジャーナル 認証あり

    Semiconducting small molecules capable of self-organizing into well-defined nanostructures have a great potential in organic electronics. In this article we review hydrogen-bond-directed supramolecular organization of barbiturated oligothiophenes and the application of the resulting one-dimensional nanostructures to solution processable bulk heterojunction organic photovoltaic cells. Through this article we illustrate that through a proper molecular design we can utilize directional hydrogen bonding units as a potent tool to organize π-conjugated molecules into 1D nanostructures optoelectronically active at the device level.

    Semiconducting small molecules capable of self-organizing into well-defined nanostructures have a great potential in organic electronics. In this article we review hydrogen-bonddirected supramolecular organization of barbiturated oligothiophenes and the application of the resulting one-dimensional nanostructures to solution processable bulk heterojunction organic photovoltaic cells. Through this article we illustrate that through a proper molecular design we can utilize directional hydrogen bonding units as a potent tool to organize π-conjugated molecules into 1D nanostructures optoelectronically active at the device level. Fullsize Image
     
  • Hayate Saito, Hideki Yorimitsu
    2019 年 48 巻 9 号 p. 1019-1028
    発行日: 2019/09/05
    公開日: 2019/09/05
    ジャーナル 認証あり

    Skeletal transformations of heteroaromatic compounds while cleaving their endocyclic bonds have been emerging as new synthetic tools in modern organic chemistry. Especially, endocyclic insertion of a heteroatom into a heteroaromatic core is a game-changing approach to exotic classes of heterocyclic compounds. In this Highlight Review is summarized recent progress of ring-expanding and ring-opening reactions of benzofurans and indoles.

    Skeletal transformations of heteroaromatic compounds while cleaving their endocyclic bonds have been emerging as new synthetic tools in modern organic chemistry. Especially, endocyclic insertion of a heteroatom into a heteroaromatic core is a game-changing approach to exotic classes of heterocyclic compounds. In this Highlight Review is summarized recent progress of ring-expanding and ring-opening reactions of benzofurans and indoles. Fullsize Image
     
Letter
Highlight Review
  • Yusuke Kuroda, Yoshiaki Nakao
    2019 年 48 巻 9 号 p. 1092-1100
    発行日: 2019/09/05
    公開日: 2019/09/05
    ジャーナル 認証あり

    The direct and selective replacement of C–H bonds in aromatic compounds with C–B bonds represents an ideal approach to arylboron compounds. Despite the tremendous advances during the past fifteen years, controlling the site-selectivity has remained a central challenge in this field. This Highlight Review summarizes the recent progress on the site-selective C–H borylation of arenes with a particular focus on the factors guiding the site-selectivity, especially catalyst-controlled site-selectivity.

    Despite the tremendous advances in the field of CH borylations of arenes over the past decade and a half, controlling the site-selectivity has remained a central challenge that requires resolving. In recent years, innovative catalytic strategies have set the stage for the realization of control over the site-selectivity in the CH borylation of arenes. This Highlight Review examines strategic key advances for the site-selective CH borylation of arenes with a particular focus on the catalyst-controlled site-selectivity that has so far remained unattainable using standard catalyst systems. Fullsize Image
     
Letter
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