Intramolecular 1,3-dipolar cycloadditions and intramolecular ene reactions of 2-(alkenyloxy)benzaldehyde arylhydrazones.
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概要
- 論文の詳細を見る
2-(3-Aryl-2-propenyloxy)benzaldehyde (or 1-naphthaldehyde) arylhydrazones undergo an intramolecular cycloaddition reaction <I>via</I> their 1,3-dipolar tautomers, azomethine imines, to the alkenyl group. Initial cycloadducts were converted to dehydrogenated compounds under the reaction conditions. On the other hand, introduction of cyano or ethoxycarbonyl groups instead of the aryl group into 3-position of the ortho propenyloxy group gave 3-cyanomethyl-4-chromanone arylhydrazones or the corresponding ethoxycarbonyl derivatives, respectively. The formation of these hydrazones was interpreted in terms of intramolecular ene reaction. The course of the reactions depends on the nature of the alkenyl substituents.
- 公益社団法人 日本化学会の論文
著者
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Teramura Kazuhiro
Department Of Pathology Wakakusa Dai-ichi Hospital
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Hayashi Yoshiyuki
Department Of Acoustic Design Kyusyu Institute Of Design
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Shimizu Tomio
Department of Dyeing, Faculty of Industrial Arts, Kyoto Technical University
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Kitora Yoshitaka
Department of Dyeing, Faculty of Industrial Arts, Kyoto Technical University
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