Reactivities of diphenylfuran (a singlet oxygen trap) with singlet oxygen and hydroxyl radical in aqueous systems.期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Reactivities of diphenylfuran (a singlet oxygen trap) with singlet oxygen and hydroxyl radical in aqueous systems.

Authors:	K Takayama T Noguchi M Nakano

Affiliation:	Department of Biochemistry, School of Medicine, Gunma University Maebashi, Gunma 371, Japan;Department of Chemistry, Gunma University, Kiryu, Gunma 376, Japan

Abstract:	It has been studied whether 2,5-diphenylfuran is a specific singlet oxygen trap in aqueous systems. With certain ¹O₂ generating systems (Rose Bengal photooxygenation and NaOClH₂O₂ systems) and·OH generating systems (Fenton's reagent and acetaldehyde-xanthine oxidase system), diphenylfuran was chiefly converted in all cases to cis-dibenzoyl-ethylene, but not to trans-dibenzoylethylene. Low but detectable conversion of diphenylfuran to a hydroperoxide, probably a distinct ¹O₂-derived reaction in aqueous media, was found only in the Rose Bengal photooxygenation system.

Keywords:	singlet molecular oxygen DPF 2,5-diphenylfuran cis-DBE cis-1,2-dibenzoylethylene trans-DBE trans-1,2-dibenzoylethylene NMR nuclear magnetic resonance IR infrared
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