New Approach for Complete Reversal of Enantioselectivity Using a Single Chiral Source

使用单一手性源完全逆转对映选择性的新方法

基本信息

  • 批准号:
    17350020
  • 负责人:
  • 金额:
    $ 9.94万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2007
  • 项目状态:
    已结题

项目摘要

Attempt for obtaining both enantiomers in high enantiomeric excess is attractive and important challenges, because it is often the case that each enantiomer exhibits different bioactivity. This review summarizes some approaches to realize complete reversal of enantioselectivity by changing various conditions. Our new approach to achieve reversal of enantioselection in the reaction of enantioselective addition of diketene to aldehydes affording optically active 5-hydroxy-3-ketoesters in high optical yield using Schiff bases containing oxazoline moiety derived from L-serine, was achieved. Starting from one chiral center (in this case from L-serine), we obtained two chiral Schiff base possessing oxazoline moieties, each of which recognized different enantioface of aldehydes in the addition reaction of diketene to aldehydes in high level (up to 93% ee R and 89% ee (S), respectively). This is the first example of complete reversal of enantioselection from the single chirality of L-serine.
尝试获得高对映体过量的两种对映体是有吸引力的和重要的挑战,因为通常情况下每种对映体表现出不同的生物活性。本文综述了通过改变反应条件实现对映选择性完全逆转的方法。我们的新方法,以实现对映体选择性加成反应中的双乙烯酮醛提供光学活性的5-羟基-3-酮酯在高的光学产率使用含有恶唑啉部分衍生的L-丝氨酸的席夫碱,实现逆转的对映体选择性。从一个手性中心出发,得到了两个含恶唑啉基团的手性Schiff碱,它们在双乙烯酮与醛的加成反应中分别识别不同的醛对映体,并具有很高的识别率(分别高达93%ee R和89%ee(S)).这是从L-丝氨酸的单一手性完全逆转对映选择的第一个例子。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Complete reversal of enantioselection using oxazoline-containing Schiff base ligands derived from L-serine in enantioselective addition of diketene to aldehydes
  • DOI:
    10.1016/j.tetasy.2006.09.026
  • 发表时间:
    2006-10-16
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Chu, Changhu;Morishita, Koji;Hayashi, Masahiko
  • 通讯作者:
    Hayashi, Masahiko
Oxidation of Secondary Benzylic Alcohols to Ketones by Activated Carbon-Molecular Oxygen System
  • DOI:
    10.1246/cl.2007.1414
  • 发表时间:
    2007-11
  • 期刊:
  • 影响因子:
    1.6
  • 作者:
    Yuki Sano;Takanori Tanaka;M. Hayashi
  • 通讯作者:
    Yuki Sano;Takanori Tanaka;M. Hayashi
同一の不斉源から両鏡像体を高光学純度で得る手法:触媒的不斉炭素-炭素結合形成反応を中心に
从同一不对称来源获得高光学纯度的两种对映体的方法:专注于催化不对称碳-碳键形成反应
Catalytic Asymmetric Carbon-Carbon Bond Forming Reactions Catalyzedby Chiral Schiff Base-Metal Complexes
手性席夫碱金属配合物催化的不对称碳-碳键形成反应
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Haneda;S. ; Kawamura;K. ; Ga n. Z. ; Eda. K. ; Hayashi. M;M. Hayashi
  • 通讯作者:
    M. Hayashi
Nitrobenzene as Hydrogen Acceptor in Pd/C‐Catalyzed Hydrogen Transfer Reaction.
硝基苯作为 Pd/C 催化氢转移反应中的氢受体。
  • DOI:
    10.1002/chin.200545047
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Takanori Tanaka;H. Kawabata;M. Hayashi
  • 通讯作者:
    M. Hayashi
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HAYASHI Masahiko其他文献

HAYASHI Masahiko的其他文献

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{{ truncateString('HAYASHI Masahiko', 18)}}的其他基金

Air-borne in-situ observation for vertical mixing process of aerosols over coastal region of Antarctic continent
南极大陆沿海地区气溶胶垂直混合过程机载原位观测
  • 批准号:
    24403001
  • 财政年份:
    2012
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
In-situ observation of stratospheric aerosol using balloon assisted gliding UAV
气球辅助滑翔无人机对平流层气溶胶的原位观测
  • 批准号:
    23651019
  • 财政年份:
    2011
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
The Analysis on popular pictures from the Middle Age to the modern era based on the text of literature in the same age
基于同时代文学文本的中古至现代流行图画分析
  • 批准号:
    21520207
  • 财政年份:
    2009
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
High Dispersion Infrared Spectroscopy for Detecting Extrasolar Terrestrial Planets
用于探测太阳系外类地行星的高色散红外光谱
  • 批准号:
    21244022
  • 财政年份:
    2009
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Microscopic studies of electronic quantum condensed state in nano-structures
纳米结构中电子量子凝聚态的微观研究
  • 批准号:
    18540335
  • 财政年份:
    2006
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Accounting Systems and Performance Evaluation for Nonprofit Organizations
非营利组织的会计制度和绩效评估
  • 批准号:
    14597015
  • 财政年份:
    2002
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Observation of spatial distributions of aerosol characteristics by the satellite sensor and the airborne systems.
通过卫星传感器和机载系统观测气溶胶特征的空间分布。
  • 批准号:
    14048225
  • 财政年份:
    2002
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
Development of dehydrogenation reaction using palladium catalyst and ethylene system
钯催化剂与乙烯体系脱氢反应的进展
  • 批准号:
    13554022
  • 财政年份:
    2001
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Catalytic asymmetric synthesis of optically active amines and their derivatives
催化不对称合成光学活性胺及其衍生物
  • 批准号:
    10640579
  • 财政年份:
    1998
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
A Comparative Study of the Relationship between Literature and Pictures in China, Korea, and Japan
中、韩、日文学与图像关系比较研究
  • 批准号:
    09610446
  • 财政年份:
    1997
  • 资助金额:
    $ 9.94万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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Molecular recognition and enantioselective reaction of amino acids
氨基酸的分子识别和对映选择性反应
  • 批准号:
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  • 财政年份:
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手性路易斯酸催化剂下硝基甲硅烷基酯与醛的对映选择性反应研究
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    346435-2008
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    2008
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  • 项目类别:
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  • 财政年份:
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手性阳离子硅路易斯酸催化的对映选择性反应
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