Porphyrins with Metal-Chelating Groups in the Peripheral Region. II.1) mes0-Tetra[2-(8-hydroxyquinolyl)]porphine

Setsuro Sugata, Yoshikazu Matsushima

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


meso-Tetra[2-(8-hydroxyquinolyl)]porphine was synthesized by the Rothemund method as a model of porphyrin with metal chelating groups in the peripheral region. The compound was soluble in dimethylformamide (DMF) but practically insoluble in water. Addition of Cu(II) perchlorate to the DMF solution resulted in biphasic spectral changes, an instantaneous change and a subsequent slow change. The spectrum after the first step showed the formation of the free base porphyrin with metal-chelated 8-quinolinol moieties. The second step was observable in the presence of a large excess of Cu(II) and was ascribed to the formation of the Cu(II)-porphyrin with Cu(II)-chelated 8-quinolinol. Addition of perchloric acid to the solution of the metalloporphyrin gave rise to the spectrum assignable to the Cu(II)-porphyrin with unchelated 8-quinolinol.

Original languageEnglish
Pages (from-to)2623-2626
Number of pages4
JournalChemical and Pharmaceutical Bulletin
Issue number7
Publication statusPublished - 1987 Jan 1


  • 8-quinolinol
  • Cu(II)-porphyrin
  • metal chelation
  • porphyrin
  • synthetic porphyrin
  • tetraarylporphine

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery


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