The Primary Formation of a Cationic C10-Pyridinio-Chlorophyll-α Derivative by Chemical/Electrochemical Oxidation and the Physico-Chemical Properties of Regioisomeric meso-Adducts

• Shin Ogasawara

• Hitoshi Tamiaki

抄録

A cationic pyridinium group was introduced to a zinc chlorophyll-a derivative at the meso-positions via its (electro)chemically oxidized cationic radical state. The coupling reactions of zinc methyl mesopyropheophorbide-a with pyridine afforded 5-, 10-, and 20-pyridinio-chlorins that were successfully separated by reversed-phase HPLC. Their 1D/2D-NMR showed the major adduct to be the C10–N+C5H5 regioisomer. Substitution with the meso-pyridinio groups red-shifted their visible absorption bands in a solution.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 91 (12), 1724-1730, 2018-12

  Tokyo : Chemical Society of Japan

キーワード

• Chlorophyll
• (Electro)chemical oxidation
• meso-Pyridinio group

詳細情報

• CRID: 1520291855732850176
• NII論文ID: 130007531012
• NII書誌ID: AA00580132
• ISSN: 00092673
• ISSN: 13480634
• DOI: 10.1246/bcsj.20180243
• NDL書誌ID: 029420509
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029420509
• Web Site: https://academic.oup.com/bcsj/article-pdf/91/12/1724/56293592/bcsj.20180243.pdf
• 本文言語コード: en
• NDL 雑誌分類:
  • ZP1(科学技術--化学・化学工業)
• データソース種別:
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN