Chiral N-Oxides as Catalysts or Ligands in Enantioselective Reactions

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概要

• 論文の詳細を見る

• New enantioselective reactions catalyzed by chiral <I>N</I>-oxides or chiral <I>N</I>-oxide-metal complexes are discussed. Enantioselective allylations of aldehydes with allyltrichlorosilanes, aldol reactions with trichlorosilyl enol ethers, and epoxide-opening reactions with tetrachlorosilane were accomplished by using chiral bipyridine <I>N</I>, <I>N</I>-dioxide derivatives as catalysts. In these reactions, hexacoordinate silicate intermediates played pivotal roles in the enantioselection. Furthermore, the <I>N</I>-oxides were efficient chiral ligands for the enantioselective conjugate addition of thiols catalyzed by cadmium complexes and Michael addition of β-keto esters catalyzed by scandium complexes.

• 社団法人 有機合成化学協会の論文
• 2003-11-01

著者

• Nakajima Makoto

  Graduate School Of Medicine Gunma Univ.

• Nakajima Makoto

  Graduate School Of Pharmaceutical Sciences Hokkaido University

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