Oxidative Dimer Produced from a 2,3,4-Trihydroxybenzoic Ester

KODAMA, Asuka; SHIBANO, Hidetoshi; KAWABATA, Jun

Bioscience, Biotechnology, and Biochemistry, 2007, 71(7), 1731-1734

Permalink : https://hdl.handle.net/2115/30155

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アクセス権	open access
URI	https://hdl.handle.net/2115/30155
タイトル	Oxidative Dimer Produced from a 2,3,4-Trihydroxybenzoic Ester
著者	KODAMA, Asuka ; SHIBANO, Hidetoshi ; KAWABATA, Jun
著者名 KODAMA, Asuka
著者名 SHIBANO, Hidetoshi
e-Rad_Researcher 60142197 著者名 KAWABATA, Jun
言語	英語
キーワード	2,3,4-trihydroxybenzoic acid
	phenolic acid
	oxidative coupling
	DPPH radical
	o-chloranil
発行日	2007-07
出版者	Japan Society for Bioscience, Biotechnology, and Agrochemistry
収録物名	Bioscience, Biotechnology, and Biochemistry
巻(号)	71(7)
ページ	1731-1734
抄録	The DPPH radical-scavenging abilities of the naturally occurring phenolic acid, 2,3,4-trihydroxybenzoic acid, and its methyl ester were evaluated. Both compounds in acetonitrile scavenged as many as four radicals compared to three or fewer radical consumption in acetone or ethanol. Only the ester showed relatively high ability in methanol. Oxidation with o-chloranil in acetonitrile resulted in methyl 2,3,4-trihydroxybenzoate giving a novel benzocoumarin-type dimer, its chemical structure being confirmed by spectroscopic evidence. The formation of this dimer might partly account for the higher radical-scavenging efficiency of the ester in acetonitrile or methanol.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0916-8451
EISSN	1347-6947
関連情報	URI http://www.jstage.jst.go.jp/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1271/bbb.70139