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ethyl 2-(4-bromobenzylidene)-3-oxobutanoate | 186682-26-8

中文名称
——
中文别名
——
英文名称
ethyl 2-(4-bromobenzylidene)-3-oxobutanoate
英文别名
ethyl 2-[(4-bromophenyl)methylidene]-3-oxobutanoate
ethyl 2-(4-bromobenzylidene)-3-oxobutanoate化学式
CAS
186682-26-8
化学式
C13H13BrO3
mdl
——
分子量
297.148
InChiKey
XKZMBCNYDBPYID-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):
    3.1
  • 重原子数:
    17
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.23
  • 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:
    参考文献:
    名称:
    酰基肟的可见光促进亚甲基基自由基形成:吡啶,喹啉和菲啶的统一方法
    摘要:
    已经建立了涉及可见光诱导的亚胺基自由基形成的统一策略,用于从酰基肟中构建吡啶,喹啉和菲啶。用FAC - [的Ir(ppy)3 ]作为催化剂photoredox,酰基肟通过1e中转化-还原成亚氨基自由基中间体,然后行分子内均裂芳族取代(HAS),得到含有N-芳烃其中。这些反应在室温下以宽范围的底物以高收率进行。这种可见光诱导的亚胺基自由基形成策略已成功地应用于五步精简合成苯并[ c ]菲啶生物碱。
    DOI:
    10.1002/anie.201411342
  • 作为产物:
    参考文献:
    名称:
    酰基肟的可见光促进亚甲基基自由基形成:吡啶,喹啉和菲啶的统一方法
    摘要:
    已经建立了涉及可见光诱导的亚胺基自由基形成的统一策略,用于从酰基肟中构建吡啶,喹啉和菲啶。用FAC - [的Ir(ppy)3 ]作为催化剂photoredox,酰基肟通过1e中转化-还原成亚氨基自由基中间体,然后行分子内均裂芳族取代(HAS),得到含有N-芳烃其中。这些反应在室温下以宽范围的底物以高收率进行。这种可见光诱导的亚胺基自由基形成策略已成功地应用于五步精简合成苯并[ c ]菲啶生物碱。
    DOI:
    10.1002/anie.201411342
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文献信息

  • Kinetics and mechanism of benzylamine additions to ethyl α-acetyl-β-phenylacrylates in acetonitrile
    作者:Hyuck Keun Oh、In Kon Kim、Dae Dong Sung、Ikchoon Lee
    DOI:10.1039/b401239a
    日期:——
    Kinetic studies of the addition of benzylamines to a noncyclic dicarbonyl group activated olefin, ethyl alpha-acetyl-beta-phenylacrylate (EAP), in acetonitrile at 25.0 degrees C are reported. The rates are lower than those for the cyclic dicarbonyl group activated olefins. The addition occurs in a single step with concurrent formation of the Calpha-N and Cbeta-H bonds through a four-center hydrogen
    据报道,在乙腈中于25.0摄氏度下,将苄胺加至非环状二羰基活化的烯烃α-乙酰基-β-苯基丙烯酸乙酯(EAP)的动力学研究。该速率低于环状二羰基活化的烯烃的速率。加成反应一步一步完成,同时通过四中心氢键过渡态同时形成Calpha-N和Cbeta-H键。氘化苄胺(XC6H4CH2ND2)测得的动力学同位素效应(kH / kD> 1.0)随着一个更强的电子受体取代基(deltasigmaX> 0),与其他二羰基活化系列(1-4)的趋势相同,但与其他(非羰基)活化系列(5-9)的趋势相反。对于二羰基系列,反应性-选择性原理(RSP)成立,但对于其他人,则适用反RSP。这些被解释为表明对于前者来说是不明显的失衡,但是对于后一个序列而言,在过渡态中共振离域的实质滞后。
  • Design, synthesis and spectroscopic and crystallographic characterisation of novel functionalized pyrazole derivatives: biological evaluation for their cytotoxic, angiogenic and antioxidant activities
    作者:Achutha Dileep Kumar、Srinivasan Bharath、Rekha N. Dharmappa、Shivalingegowda Naveen、Neratur Krishnappagowda Lokanath、Kariyappa Ajay Kumar
    DOI:10.1007/s11164-018-3445-6
    日期:2018.9
    presents the synthesis of functionalized pyrazoles ( 18–29 ) through 3 + 2 annulation reaction of ethyl 2-(arylidene)-3-oxobutanoates ( 8–13 ) with phenylhydrazine hydrochlorides ( 14–17 ) in acetic acid under reflux conditions. Structures of the synthesized new compounds were characterized by spectral and single-crystal X-ray diffraction studies. Preliminary assessment on their biological activities
    摘要 目前的研究提出了回流条件下,通过乙酸中的2-(亚芳基)-3-氧代丁酸乙酯( 8-13 )与盐酸苯肼( 14-17 )的3 + 2环化反应,可以合成官能化的吡唑( 18–29 )。 条件。通过光谱和单晶X射线衍射研究表征了合成的新化合物的结构。它们的生物活性的初步评估显示,化合物 19 , 23 和 28 具有抗癌和抗血管生成特性和化合物 20 , 24 和 26 具有出色的二苯基吡啶甲基肼基(DPPH)自由基清除活性。详细的定量构效关系(QSAR)分析提供了对可能有助于增加抑制效力的分子特征的见解。总而言之,我们进行的一项研究成功地证明了新型吡唑类似物的合成,这些吡唑类似物具有抗癌,抗血管生成和DPPH自由基清除活性,使它们成为进一步开发的首选分子。 图形概要
  • An Unexpected Phosphine-Catalyzed Regio- and Diastereoselective [4+1] Annulation Reaction of Modified Allylic Compounds with Activated Enones
    作者:Zuliang Chen、Junliang Zhang
    DOI:10.1002/asia.201000193
    日期:——
    Rapid access: An unexpected regio‐ and diastereoselective phosphine‐catalyzed [4+1] annulation reaction of modified allylic compounds with activated enones was revealed, providing a simple, efficient route to synthesis of highly substituted 2,3‐dihydrofurans with convertible functional groups.
    快速访问:修饰的烯丙基化合物与活化的烯酮的意外的区域和非对映选择性膦催化的[4 + 1]环化反应被揭示,为合成具有可转换官能团的高度取代的2,3-二氢呋喃提供了一种简单有效的途径。
  • Solvent-Free Knoevenagel Condensation over Cobalt Hydroxyapatite
    作者:Manoharan Karuppiah Pillai、Sooboo Singh、Sreekanth B. Jonnalagadda
    DOI:10.1080/00397910903531714
    日期:2010.11.16
    The Knoevenagel condensation between various aldehydes (benzaldehyde, 1-naphthaldehyde, p-bromobenzaldehyde and p-methoxybenzaldehyde) and esters (ethylcyanoacetate, ethylacetoacetate and diethylmalonoester) was carried out under solvent free condition in the presence of cobalt hydroxyapatite (CoHAp), as a catalyst. Good to excellent yields (35-96%) were obtained. The catalyst is found to be superior over fluorapatite and several other heterogeneous catalysts. The catalyst can be recycled at least 3 times.
  • Condensation reactions of guanidines with bis-electrophiles: formation of highly nitrogenous heterocycles
    作者:David M. Arnold、Matthew G. LaPorte、Shelby M. Anderson、Peter Wipf
    DOI:10.1016/j.tet.2013.04.127
    日期:2013.9
    2-Amino-1,4-dihydropyrimidines were reacted with bis-electrophiles to produce novel fused bipyrimidine, pyrimidoaminotriazine, and pyrimidosulfonamide scaffolds. In addition, a quinazoline library was constructed using a guanidine Atwal-Biginelli reaction with 1-(quinazolin-2-yl)guanidines. The product heterocycles have novel constitutions with high nitrogen atom counts and represent valuable additions to screening libraries for the discovery of new modulators of biological targets. (C) 2013 Elsevier Ltd. All rights reserved.
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