ケトイミンに対する触媒的不斉アリル化反応の開発

DOI

書誌事項

タイトル別名
  • Catalytic Enantioselective Allylation of Ketoimines

抄録

A general catalytic allylation of simple ketoimines was developed using 1 mol % of CuF(PPh3)3 as catalyst, 1.5 mol % of La(OiPr)3 as the cocatalyst, and stable and nontoxic allylboronic acid pinacol ester as the nucleophile. This reaction constituted a good template for developing the first catalytic enantioselective allylation of ketoimines. In this case, using LiOiPr as the cocatalyst produced higher enantioselectivity and reactivity than La(OiPr)3. Thus, using the CuF-cyclopentyl-DuPHOS complex (10 mol %) and LiOiPr(30 mol %) in the presence of tBuOH (1 equiv) produced high enantioselectivity up to 93% ee from range of aromatic ketoimines. Mechanistic studies indicated that LiOiPr accelerates the reaction by increasing the concentration of an active nucleophile, allylcopper.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390282680610580992
  • NII論文ID
    130006996026
  • DOI
    10.14895/hannou.32.0.260.0
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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