Expanded dipyrrins with electron-withdrawing substituents: Broad range of absorption in the visible region

Xu Liang, Soji Shimizu, Nagao Kobayashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Reaction of meso-aryl-substituted dipyrromethanes with tetracyanoethylene led to generation of a mono-tricyanovinyl-substituted species as well as an expanded dipyrrin analogue bearing both a dicyanomethylene and a tricyanovinyl substituent at the α-positions. These novel compounds exhibit absorption spectral features perturbed by the electron-withdrawing substituents. Unique protonation-induced spectral changes were also disclosed.

Original languageEnglish
Pages (from-to)256-258
Number of pages3
JournalTetrahedron Letters
Volume55
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Dipyrrin
  • Electronic absorption
  • Functional dyes
  • Push-pull effect

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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