ケトイミンに対する触媒的不斉アリル化反応の開発
書誌事項
- タイトル別名
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- 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
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- 反応と合成の進歩シンポジウム 発表要旨概要
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反応と合成の進歩シンポジウム 発表要旨概要 32 (0), 260-260, 2006
日本薬学会化学系薬学部会
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詳細情報 詳細情報について
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- CRID
- 1390282680610580992
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- NII論文ID
- 130006996026
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可