Synthesis of highly twisted and fully π-conjugated porphyrinic oligomers

Satoru Ito, Satoru Hiroto, Sangsu Lee, Minjung Son, Ichiro Hisaki, Takuya Yoshida, Dongho Kim, Nagao Kobayashi, Hiroshi Shinokubo

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46 Citations (Scopus)


Highly twisted π-conjugated molecules have been attractive but challenging targets. We report here an efficient synthesis of highly twisted diporphyrins with 126° and 136° twist angles that involves an oxidative fusion reaction of planar aminoporphyrin precursors at room temperature. Repeated amination-oxidative fusion sequences provide a unidirectionally twisted tetramer. The twisting angle of the tetramer is 298°.

Original languageEnglish
Pages (from-to)142-145
Number of pages4
JournalJournal of the American Chemical Society
Issue number1
Publication statusPublished - 2015 Jan 14


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Ito, S., Hiroto, S., Lee, S., Son, M., Hisaki, I., Yoshida, T., Kim, D., Kobayashi, N., & Shinokubo, H. (2015). Synthesis of highly twisted and fully π-conjugated porphyrinic oligomers. Journal of the American Chemical Society, 137(1), 142-145.