Triflic acid mediated cascade cyclization of aryldiynes for the synthesis of indeno[1,2-c]chromenes: Application to dye-sensitized solar cells

Hua Jiang, Giovanni Ferrara, Xuan Zhang, Kazuaki Oniwa, Ashraful Islam, Liyuan Han, Ying Ji Sun, Ming Bao, Naoki Asao, Yoshinori Yamamoto, Tienan Jin

研究成果: Article査読

26 被引用数 (Scopus)

抄録

A new triflic acid (TfOH)-mediated cascade cyclization of ortho-anisole-substituted aryldiynes is described for the construction of indeno[1,2-c]chromenes. The cascade cyclization proceeds through an unusual TfOH-induced alkyne-alkyne cyclization followed by nucleophilic attack of the methoxy group on the benzylidene cation, which is completely different to the cyclization of ortho-aniline- or ortho-thioanisole-substituted aryldiynes. A new class of organic dyes with the indeno[1,2-c]chromene framework as both donor and π-linker were synthesized. These compounds exhibit high photovoltaic performances in dyesensitized solar cells (DSCs).

本文言語English
ページ(範囲)4065-4070
ページ数6
ジャーナルChemistry - A European Journal
21
10
DOI
出版ステータスPublished - 2014 10 7

ASJC Scopus subject areas

  • 触媒
  • 有機化学

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