Axially dissymmetric bis(aminophosphine)s derived from 2,2'-diamino-1,1'-binaphthyl. Synthesis and application to rhodium(I)-catalyzed asymmetric hydrogenations.

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概要

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• Axially dissymmetric bisphosphine ligands, (<I>R</I>)- and (<I>S</I>)-2,2′-bis(diphenylphosphinoamino)-1,1′-binaphthyl (BDPAB) and (<I>R</I>)-2,2′-bis[<I>N</I>-(diphenylphosphino)methylamino]-1,1′-binaphthyl (Me-BDPAB) were conveniently prepared from 2,2′-diamino-1,1′-binaphthyl. The rhodium(I)-catalyzed asymmetric hydrogenation of α-acylamidoacrylic acids and esters gave the corresponding amino acids of up to 95% optical purity. The sign of the centro-chirality of the product amino acids was always the same to that of the axial chirality of the ligand in both cases of BDPAB and Me-BDPAB.

• 公益社団法人 日本化学会の論文

著者

• Miyano Sotaro

  Department Of Biochemistry And Engineering Faculty Of Engineering Tohoku University

• Mori Akira

  Departmenet Of Animal Husbandry Faculty Of Agriculture Tohoku University

• Hashimoto Harukichi

  Department of Applied Chemistry, Faculty of Engineering, Tohoko University

• Nawa Masayoshi

  Department of Applied Chemistry, Faculty of Engineering, Tohoku University

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