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(E)-ethyl 4-cyclohexyl-2-oxo-but-3-enoate | 201798-49-4

中文名称
——
中文别名
——
英文名称
(E)-ethyl 4-cyclohexyl-2-oxo-but-3-enoate
英文别名
ethyl (E)-4-cyclohexyl-2-oxobut-3-enoate;(E)-ethyl 4-cyclohexyl-2-oxobut-3-enoate
(E)-ethyl 4-cyclohexyl-2-oxo-but-3-enoate化学式
CAS
201798-49-4
化学式
C12H18O3
mdl
——
分子量
210.273
InChiKey
XZBZHTRGTBMMLT-CMDGGOBGSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 沸点:
    300.0±13.0 °C(Predicted)
  • 密度:
    1.092±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.4
  • 重原子数:
    15
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    43.4
  • 氢给体数:
    0
  • 氢受体数:
    3

反应信息

  • 作为反应物:
    描述:
    (E)-ethyl 4-cyclohexyl-2-oxo-but-3-enoate正丁基锂L-Selectride 作用下, 以 四氢呋喃乙醚二氯甲烷 为溶剂, 反应 2.92h, 生成 C30H37NO6S
    参考文献:
    名称:
    Enantiospecific and diastereoselective synthesis of syn-β-amino-α-hydroxy acids
    摘要:
    The reaction of chiral alpha-hydroxy beta,gamma-unsaturated esters with tosyl isocyanate followed by cyclization of the resulting allylic carbamates with iodine in the presence of sodium carbonate provided trans-4,5-disubstituted 2-oxazolidinone derivatives in a highly diastereoselective manner. The subsequent removal of the iodo group and the protective functionality afforded the syn-beta-amino-alpha-hydroxy acids. Using the reaction sequence, (2R,3S)- and (2S,3R)-3-amino-2-hydroxy acids were synthesized with high enantioselectivity. (C) 1997 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0957-4166(97)00595-8
  • 作为产物:
    描述:
    丙酮酸乙酯环己烷基甲醛titanium(IV) tetraethanolate 作用下, 以 甲苯 为溶剂, 反应 72.0h, 以51%的产率得到(E)-ethyl 4-cyclohexyl-2-oxo-but-3-enoate
    参考文献:
    名称:
    从醛和丙酮酸直接合成 β,γ-不饱和 α-酮酯
    摘要:
    在这里,我们描述了两种实用的方法,在温和条件下,在 Ac2O 或 Ti(OEt)4 存在下,由 BF3•Et2O 促进的醛和丙酮酸盐直接合成 β,γ-不饱和 α-酮酯。可以耐受各种芳香醛,以中等至极好的收率提供所需的产品。此外,脂肪醛和靛红也被用于通过使用 Ti(OEt)4 系统以中等产率得到 γ-烷基 β,γ-不饱和 α-酮酯。
    DOI:
    10.1055/s-0037-1612255
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文献信息

  • Copper-Catalyzed Enantioselective Henry Reaction of β,γ-Unsaturated α-Ketoesters with Nitromethane in Water
    作者:Yanan Li、Yekai Huang、Yang Gui、Jianan Sun、Jindong Li、Zhenggen Zha、Zhiyong Wang
    DOI:10.1021/acs.orglett.7b03299
    日期:2017.12.1
    A highly enantioselective Henry reaction of β,γ-unsaturated α-ketoesters with nitromethane in water by virtue of chiral copper complexes has been developed. A series of unsaturated β-nitro-α-hydroxy esters bearing tetrasubstituted carbon stereocenters were obtained exclusively with high yields and excellent enantioselectivities. This method could avoid tedious anaerobic anhydrous manipulation and reduce
    借助于手性铜配合物,开发了β,γ-不饱和α-酮酸酯与硝基甲烷在水中的高度对映选择性亨利反应。仅以高收率和优异的对映选择性获得了一系列带有四取代碳立体中心的不饱和β-硝基-α-羟基酯。该方法可以避免繁琐的厌氧无水操作,减少有机溶剂对环境的污染。
  • Enantioselective Conjugate Addition of <i>N</i>,<i>N</i>-Dialkylhydrazones to α-Hydroxy Enones
    作者:David Monge、Eloísa Martín-Zamora、Juan Vázquez、Manuel Alcarazo、Eleuterio Álvarez、Rosario Fernández、José M. Lassaletta
    DOI:10.1021/ol071055+
    日期:2007.7.1
    The activation of alpha-hydroxy enones by the Zn(OTf)2/tBuBOX catalyst enables the enantioselective conjugate addition of 1-methyleneaminopyrrolidine as a neutral d1 synthon. Experimental evidence supports a stereochemical model where a triflate ligand controls the geometry of the catalyst-substrate complex by means of a OH-OTf hydrogen bond. The synthesis of beta-cyano acids illustrates the potential
    Zn(OTf)2 / tBuBOX催化剂对α-羟基烯酮的活化使得对映选择性共轭加成1-亚甲基氨基吡咯烷作为中性d1合成子。实验证据支持立体化学模型,其中三氟甲磺酸酯配体通过OH-OTf氢键控制催化剂-底物配合物的几何形状。β-氰基酸的合成说明了该方法的潜力。
  • Organocatalytic Conjugate Addition of Formaldehyde <i>N,N</i>-Dialkylhydrazones to β<i>,</i>γ-Unsaturated α-Keto Esters
    作者:Raquel P. Herrera、David Monge、Eloísa Martín-Zamora、Rosario Fernández、José M. Lassaletta
    DOI:10.1021/ol071292c
    日期:2007.8.1
    (1S,2R)-1-Aminoindan-2-ol-derived thioureas behave as efficient H-bonding organocatalysts for the nucleophilic conjugate addition of formaldehyde hydrazones to beta,gamma-unsaturated alpha-keto esters as enoate surrogates, affording the corresponding adducts in good yields and enantioselectivities.
    (1S,2R)-1-氨基茚满-2-醇衍生的硫脲可作为有效的H键有机催化剂,将甲醛类化合物作为烯酸酯替代物亲和共轭添加甲醛beta,以提供相应的加合物。良好的产率和对映选择性。
  • Chiral N-Heterocyclic Carbene Catalyzed, Enantioselective Oxodiene Diels−Alder Reactions with Low Catalyst Loadings
    作者:Ming He、Gerson J. Uc、Jeffrey W. Bode
    DOI:10.1021/ja066380r
    日期:2006.11.1
    Chiral N-heterocyclic carbene (NHC) catalyzed redox reactions of racemic alpha-chloroaldehydes lead to the generation of chiral enolates suitable for highly enantioselective inverse-electron-demand 1-oxodiene Diels-Alder reactions. Significantly, these reactions proceed under mild, operationally friendly reaction conditions (EtOAc, room temperature, 2-8 h) using less than 1 mol % of a chiral N-mesityl
    手性 N-杂环卡宾 (NHC) 催化的外消旋 α-氯醛的氧化还原反应导致生成适用于高度对映选择性逆电子需求 1-氧二烯 Diels-Alder 反应的手性烯醇化物。值得注意的是,这些反应在温和、操作友好的反应条件(EtOAc,室温,2-8 小时)下进行,使用小于 1 mol% 的手性 N-甲基三唑鎓盐作为预催化剂。大量带有脂肪族或芳香族取代基的密集官能化二氢吡喃-2-酮以优异的产率和出色的对映选择性从容易获得的反应物中形成。通过氯醛在反应条件下的快速差向异构化,避免了外消旋原料和手性催化剂之间的立体化学错配。
  • ENANTIOSELECTIVE REACTIONS CATALYZED BY CHIRAL TRIAZOLIUM SALTS
    申请人:Bode Jeffrey
    公开号:US20100210452A1
    公开(公告)日:2010-08-19
    This invention provides a convenient method for converting imines and other electrophiles into heterocyclic ring systems. The process does not require the use of metallic reagents, and is catalyzed by an organic heterocyclic carbene catalyst. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. Chiral heterocyclic carbene catalysts of the invention and methods of using these catalysts produce chiral heterocycles in high enantiomeric and diastereomeric excess.
    本发明提供了一种将亚胺和其他亲电试剂转化为杂环环系统的方便方法。该过程不需要使用金属试剂,而是由有机杂环卡宾催化剂催化。因此,它可产生所需化合物而不伴随大量金属废物的产生。本发明的手性杂环卡宾催化剂及其使用方法可产生高对映选择性和立体异构选择性的手性杂环。
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