Asymmetric synthesis of axially chiral biaryl diphosphine ligands by rhodium-catalyzed enantioselective intramolecular double [2 + 2 + 2] cycloaddition |
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| Authors: | Mori Fumiya Fukawa Naohiro Noguchi Keiichi Tanaka Ken |
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| Institution: | Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan. |
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| Abstract: | The concise synthesis of axially chiral biaryl diphosphine ligands by the rhodium-catalyzed intramolecular 2 + 2 + 2] cycloaddition of hexayne diphosphine oxides has been achieved. These new chiral diphosphine ligands could be employed as a ligand for the rhodium-catalyzed asymmetric catalyses. |
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