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ethyl 2-cyano-4-nitro-3-phenylbutanoate | 198554-10-8

中文名称
——
中文别名
——
英文名称
ethyl 2-cyano-4-nitro-3-phenylbutanoate
英文别名
——
ethyl 2-cyano-4-nitro-3-phenylbutanoate化学式
CAS
198554-10-8
化学式
C13H14N2O4
mdl
——
分子量
262.265
InChiKey
NGUZKMUCYKSLNP-UHFFFAOYSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    2
  • 重原子数:
    19
  • 可旋转键数:
    6
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.38
  • 拓扑面积:
    95.9
  • 氢给体数:
    0
  • 氢受体数:
    5

反应信息

  • 作为产物:
    描述:
    反式硝基苯乙烯氰乙酸乙酯三乙胺 作用下, 以 二氯甲烷 为溶剂, 反应 24.0h, 以67%的产率得到ethyl 2-cyano-4-nitro-3-phenylbutanoate
    参考文献:
    名称:
    反式-β-硝基苯乙烯的亲电性
    摘要:
    已在20°C的二甲基亚砜溶液中测定了反式-β-硝基苯乙烯1a - f与受体取代的碳负离子2a - h的反应动力学。将得到的二级速率常数用于确定特定的亲电子反应性参数Ë所述的反式根据所述相关方程日志-β-硝基苯乙烯 ķ 2(20℃)=小号Ñ(Ñ + ë)。该Ë在我们的经验亲电等级(www.cup.lmu.de/oc/mayr/DBintro.html)上,参数的范围是-12至-15。测量了反式-β-硝基苯乙烯与某些烯胺的反应的二级速率常数,发现该常数与根据这项工作确定的亲电参数E和先前公布的烯胺的N和s N参数计算出的常数一致。
    DOI:
    10.1021/jo201678u
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文献信息

  • Organocatalyzed asymmetric Michael addition by an efficient bifunctional carbohydrate–thiourea hybrid with mechanistic DFT analysis
    作者:Chandra S. Azad、Imran A. Khan、Anudeep K. Narula
    DOI:10.1039/c6ob02158a
    日期:——
    core scaffold were synthesized and examined as catalysts for the asymmetric Michael addition reaction of aryl/alkyl trans-β-nitrostyrenes over cyclohexanone and other Michael donors having active methylene. Excellent enantioselectivities (<95%), diastereoselectivities (<99%), and yields (<99%) were attained under solvent free conditions using 10 mol% of 1d0. The obtained results were explained through
    合成了一系列以D-葡萄糖为核心骨架的硫脲基双功能有机催化剂,并研究了其作为芳基/烷基反式-β-硝基苯乙烯在环己酮和其他具有活性亚甲基的迈克尔供体上的不对称迈克尔加成反应的催化剂。在无溶剂条件下,使用10 mol%的1d 0可获得极好的对映选择性(<95%),非对映选择性(<99%)和产率(<99%)。通过使用B3LYP / 6-311G(d,p)// B3LYP / 6-31G(d)基本集的DFT计算来解释获得的结果。QM / MM计算揭示了在速率确定步骤中环己酮作为溶剂和反应物的作用,赋予了31.91 kcal mol -1 能量形成产品。
  • Organic amine grafting on mesoporous silica as a hybrid catalyst for heterogeneous three-component one-pot reaction
    作者:Kenichi Komura、Yuta Mishima、Mamoru Koketsu
    DOI:10.1016/j.apcata.2012.08.009
    日期:2012.11
    organic–inorganic hybrid catalyst was prepared by immobilizing 3-methylaminopropyl moiety onto mesoporous silica, MCM-41, and applied for solid base catalyst of three-component one-pot reaction, i.e. Knoevenagel condensation of aldehyde with the active methylene compound to yield an electron deficient alkene which is subjective to be reacted with nitromethane by Michael addition to form tri-substituted
    有机-无机杂化催化剂是通过将3-甲基氨基丙基部分固定在介孔二氧化硅MCM-41上制备的,并用于三组分一锅法反应的固体基础催化剂,即醛与活性亚甲基化合物的Knoevenagel缩合反应得到电子不足的烯烃,其易于通过迈克尔加成与硝基甲烷反应形成三取代的伯硝基化合物。通过粉末XRD,TG-DTA,FT-IR,氮吸附-脱附测量和固态交叉极化幻角旋转(CP / MAS)NMR表征该催化剂,并在三组分一锅法中表现出高催化活性。反应; 但是,可重用性较差。
  • Reduced graphene oxide supported piperazine in aminocatalysis
    作者:Eduardo Rodrigo、Beatriz García Alcubilla、Raquel Sainz、J. L. García Fierro、Rafael Ferritto、M. Belén Cid
    DOI:10.1039/c4cc02701a
    日期:——
    Reduced graphene oxide (rGO) has been used as a support for piperazine to provide a heterogeneous bifunctional organocatalyst (rGO-NH) that is able to efficiently promote vintage organic transformations such as Knoevenagel, Michael and aldol reactions. The obtained results suggest a significant role of the support in the course of these reactions.
    还原氧化石墨烯(rGO)被用作哌嗪的载体,以提供一种能够高效促进老式有机转化反应的异相双功能有机催化剂(rGO-NH),例如Knoevenagel反应、迈克尔反应和醛醇反应。获得的结果表明,载体在这些反应过程中发挥了重要作用。
  • Catalytic Inhibition of Base‐Mediated Reactivity by a Self‐Assembled Metal‐Ligand Host
    作者:Bryce da Camara、Connor Z. Woods、Komal Sharma、Hoi‐Ting Wu、Naira S. Farooqi、Changwei Chen、Ryan R. Julian、Douglas A. Vander Griend、Richard J. Hooley
    DOI:10.1002/chem.202302499
    日期:2023.11.13
    Abstract

    Spacious M4L6 tetrahedra can act as catalytic inhibitors for base‐mediated reactions. Upon adding only 5 % of a self‐assembled Fe4L6 cage complex, the conversion of the conjugate addition between ethylcyanoacetate and β‐nitrostyrene catalyzed by proton sponge can be reduced from 83 % after 75 mins at ambient temperature to <1 % under identical conditions. The mechanism of the catalytic inhibition is unusual: the octacationic Fe4L6 cage increases the acidity of exogenous water in the acetonitrile reaction solvent by favorably binding the conjugate acid of the basic catalyst. The inhibition only occurs for Fe4L6 hosts with spacious internal cavities: minimal inhibition is seen with smaller tetrahedra or Fe2L3 helicates. The surprising tendency of the cationic cage to preferentially bind protonated, cationic ammonium guests is quantified via the comprehensive modeling of spectrophotometric titration datasets.

    摘要宽敞的 M4L6 四面体可作为碱介导反应的催化抑制剂。在相同条件下,只需加入 5% 的自组装 Fe4L6 笼复合物,就能将质子海绵催化的氰基乙酸乙酯与β-硝基苯乙烯的共轭加成反应转化率从环境温度下 75 分钟后的 83% 降低到 1%。催化抑制的机理与众不同:八阳离子 Fe4L6 笼通过与碱性催化剂的共轭酸有利地结合,增加了乙腈反应溶剂中外源水的酸度。只有具有宽敞内腔的 Fe4L6 宿主才会产生抑制作用:较小的四面体或 Fe2L3 螺旋体的抑制作用最小。通过对分光光度滴定数据集进行综合建模,量化了阳离子笼优先结合质子化阳离子铵客体的惊人趋势。
  • Electrophilicities of<i>trans</i>-β-Nitrostyrenes
    作者:Ivo Zenz、Herbert Mayr
    DOI:10.1021/jo201678u
    日期:2011.11.18
    reactions of the trans-β-nitrostyrenes 1a–f with the acceptor-substituted carbanions 2a–h have been determined in dimethyl sulfoxide solution at 20 °C. The resulting second-order rate constants were employed to determine the electrophile-specific reactivity parameters E of the trans-β-nitrostyrenes according to the correlation equation log k2(20 °C) = sN(N + E). The E parameters range from −12 to −15
    已在20°C的二甲基亚砜溶液中测定了反式-β-硝基苯乙烯1a - f与受体取代的碳负离子2a - h的反应动力学。将得到的二级速率常数用于确定特定的亲电子反应性参数Ë所述的反式根据所述相关方程日志-β-硝基苯乙烯 ķ 2(20℃)=小号Ñ(Ñ + ë)。该Ë在我们的经验亲电等级(www.cup.lmu.de/oc/mayr/DBintro.html)上,参数的范围是-12至-15。测量了反式-β-硝基苯乙烯与某些烯胺的反应的二级速率常数,发现该常数与根据这项工作确定的亲电参数E和先前公布的烯胺的N和s N参数计算出的常数一致。
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