量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
Thank you very much for using our website. On the 11th of March 2019, this site was moved from our own network server to the JAIRO Cloud network server. If you previously bookmarked this site, that bookmark will no longer work. We would be grateful if you could bookmark the website again. Thank you very much for your understanding and cooperation.
The development of novel antioxidants showing a stronger radical-scavenging activity than natural antioxidants has attracted considerable interest to remove reactive oxygen species, which are known to induce oxidative stress and associated diseases. We herein report the synthesis, radical-scavenging activity, and redox behavior of planar catechin derivatives, in which catechol and chroman moieties in natural (+)-catechin are constrained to be planar. The spectroscopic and kinetic studies have demonstrated that the rate of the scavenging reaction of galvinoxyl radical by the planar catechin is about 5-fold faster than that by (+)-catechin in deaerated acetonitrile.
会議概要（会議名, 開催地, 会期, 主催者等）
International Society for Free Radical Research 13th Biennial Congress
Synthesis, Radical-Scavenging Activity, and Redox Behavior of Planar Catechin Derivatives
