Organic photochemical reactions. XXVI. Photoaddition of singlet and triplet methyl pyruvate with 2,3-dimethyl-2-butene.
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概要
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UV irradiation of methyl pyruvate in the presence of 2,3-dimethyl-2-butene leads to the formation of four primary photo-products in reasonable quantum yield: two unsaturated ethers (<B>1</B> and <B>2</B>) and two unsaturated alcohols (<B>3</B> and <B>4</B>). The effects of olefin concentration on the quantum yield of product formation, as well as quenching studies, suggest that <B>3</B> and <B>4</B> are formed from the excited singlet state of methyl pyruvate, while <B>1</B> and <B>2</B> are produced from the triplet state of methyl pyruvate. The role of exciplexes in this reaction is discussed. Quenching data of fluorescence of methyl pyruvate and the kinetic analysis of this reaction support these considerations.
- 公益社団法人 日本化学会の論文
著者
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Shima Kensuke
Department Of Applied Chemistry Faculty Of Engineering Miyazaki University
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Sawada Taisuke
Department of Industrial Chemistry, Faculty of Engineering, Miyazaki University
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Yoshinaga Hiroyuki
Department of Industrial Chemistry, Faculty of Engineering, Miyazaki University
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