New synthesis of 2-oxo-3-alkenylphosphonates and hetero Diels-Alder reactions with vinyl ethers leading to 5-substituted 2-phosphinyl-2-cyclohexen-1-ones.
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概要
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A new method of synthesizing phosphinyl-substituted enones, 2-oxo-3-alkenylphosphonates, is developed via the dianion of diethyl 2-oxopropylphosphonate. The enones serve as hetero dienes in thermal reactions with vinly ethers producing 2-alkoxy-6-(phosphinylmethyl)-3,4-dihydro-2<I>H</I>-pyrans. Acid-catalyzed cleavage of these cycloadducts is followed spontaneously by internal condensation furnishing 2-phosphinyl-2-cyclohexen-1-one derivatives.
- 公益社団法人 日本化学会の論文
著者
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Kanemasa Shuji
Institute Of Advanced Material Study Kyushu University
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Wada Eiji
Institute Of Advanced Material Study Kyushu University
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Tsuge Otohiko
Institute of Advanced Material Study, and Department of Molecular Science and Technology, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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Tsuge Otohiko
Institute of Advanced Material Study, and Department of Molecular Science and Technology, Interdisciplinary Graduate School of Engineering Sciences
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Wada Eiji
Institute of Advanced Material Study, and Department of Molecular Science and Technology, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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