Asymmetric hydrogenation of dehydroamino acids and dehydrodipeptides with rhodium(I)-modified DIOP catalysts.
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概要
- 論文の詳細を見る
(−)-DIOP was modified in two ways: i), Introduction of a large aromatic substituent at the dioxolane ring of (−)-DIOP and ii), replacement of one diphenylphosphino group by diarylphosphino group to give unsymmetrical DIOPs. Modification at the dioxolane ring had a small effect on the asymmetric induction by DIOP in the hydrogenation. Modification at the phosphino group affected the stereocontrol by the ligand and the unsymmetrical DIOP with di-2-naphthylphosphino group gave higher optical yields than (−)-DIOP for the hydrogenation of α-acetamidocinnamic acid and dehydrodipeptides.
- 公益社団法人 日本化学会の論文
著者
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Yamagishi Takamichi
Department Of Applied Chemistry Graduate School Of Engineering Tokyo Metropolitan University
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Hida Mitsuhiko
Department of Industrial Chemistry, Faculty of Engineering, Tokyo Metropolitan University
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Yatagai Masanobu
Department of Industrial Chemistry, Faculty of Technology, Tokyo Metropolitan University
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Hatakeyama Hidetoshi
Department of Industrial Chemistry, Faculty of Technology, Tokyo Metropolitan University
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