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ethyl 2,2-dimethyl-4-phenyl-3-butynoate | 83188-31-2

中文名称
——
中文别名
——
英文名称
ethyl 2,2-dimethyl-4-phenyl-3-butynoate
英文别名
ethyl 2,2-dimethyl-4-phenylbut-3-ynoate
ethyl 2,2-dimethyl-4-phenyl-3-butynoate化学式
CAS
83188-31-2
化学式
C14H16O2
mdl
——
分子量
216.28
InChiKey
ZDDMZBLXYJNVEC-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

物化性质

  • 沸点:
    306.5±25.0 °C(Predicted)
  • 密度:
    1.03±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.4
  • 重原子数:
    16
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.36
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    ethyl 2,2-dimethyl-4-phenyl-3-butynoate硫酸 作用下, 反应 24.0h, 以84%的产率得到2,2-二甲基-4-氧代-4-苯基丁酸
    参考文献:
    名称:
    氯乙炔为迈克尔受体。二。叔烯酸酯的直接乙炔化和乙烯基化。
    摘要:
    ClCCCl,PhCCCl和PhSCCCl与各种叔烯醇化物的反应导致α-氯乙炔基,α-苯基乙炔基和α-硫代苯基乙炔基衍生物的产率为43-90%。该-CCCl组被平稳地转换在HOAc / THF使用铜粉末-CCH,或者被直接还原(H 2 /林德乐催化剂)与-CHCH 2基团,从而提供许多α-容易访问乙炔基和α-乙烯基酮和酯。
    DOI:
    10.1016/s0040-4039(00)87345-1
  • 作为产物:
    描述:
    2-氯乙炔基苯异丁酸乙酯六甲基磷酰三胺lithium diisopropyl amide 作用下, 以83%的产率得到ethyl 2,2-dimethyl-4-phenyl-3-butynoate
    参考文献:
    名称:
    氯乙炔作为迈克尔受体。3. 烯醇与卤代烯烃和氯乙炔的反应机理及合成效用
    摘要:
    缩合 d'enolates(例如 l'enolate de Li de la dimethyl-2,6 cyclohexene-2one) avec le trichloroethylene, d'autres ethylenes polyhalogenes et le perchlorobutadiene-1,3。机制。全氯丁烯的内酯化作用。氯乙炔缩合
    DOI:
    10.1021/ja00324a025
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文献信息

  • The Mechanism of Gold(I)-Catalyzed Hydroalkoxylation of Alkynes: An Extensive Experimental Study
    作者:Alexander Zhdanko、Martin E. Maier
    DOI:10.1002/chem.201303795
    日期:2014.2.10
    An extensive experimental study of the mechanism of gold(I)‐catalyzed hydroalkoxylation of internal alkynes has been conducted by using NMR spectroscopy. This study was focused on the organogold intermediates, observations of actual catalytic intermediates in situ, and the reaction kinetics that are involved in this reaction. Based on the experimental results, a complete mechanistic picture was established
    使用NMR光谱对金(I)催化的内部炔烃加氢烷氧基化机理进行了广泛的实验研究。这项研究的重点是有机金中间体,原位实际催化中间体的观察以及该反应涉及的反应动力学。根据实验结果,建立了完整的机理图,包括解释了稀有物种的作用的循环和非循环过程。我们已经表明,内部炔烃的金催化加氢烷氧基化反应只需要一个金原子就可以进行催化循环,这证明了有关协同金催化作用的最新假设。
  • A Convenient Synthesis of 1,2-Dithietes and 1,2-Dithioxo Compounds Stabilized by Buttressing and Resonance Effects, Respectively, by Sulfuration of Alkynes with Elemental Sulfur
    作者:Keun Soo Choi、Isao Akiyama、Masamatsu Hoshino、Juzo Nakayama
    DOI:10.1246/bcsj.66.623
    日期:1993.2
    Sulfuration of a series of alkynes by elemental sulfur was investigated. Alkynes carrying highly bulky substituents, 2,2,5,5-tetramethyl-3-hexyne (6a), 1,2-di-(1-adamantyl)ethyne (6b), 3,3-dimethyl-1-phenyl-1-butyne (6c), and 1-(1-adamantyl)-2-phenylethyne (6d), reacted with sulfur to give the corresponding stable 1,2-dithietes 7a—d in 46—65% yields. Less hindered alkynes reacted with sulfur to afford 1,4-dithiins and thiophenes as the final products which were derived from the initial products, 1,2-dithietes, via their tautomerization to the corresponding 1,2-dithioxo compounds, while extremely congested alkynes failed to react with sulfur even under forcing conditions. On the other hand, ynamines, a typical electron-rich alkyne, 1-diethylamino-2-phenylthioethyne (6o), 1-diethylamino-2-phenylselenoethyne (6p), and tetraethylethynediamine (6q) were sulfurated under milder conditions to afford resonance-stabilized 1,2-dithioxo compounds 19o—q as the principal products. Mechanism of the formation of 1,2-dithietes, 1,2-dithioxo compounds, and other products is discussed.
    用元素硫对一系列炔烃进行硫化反应进行了研究。带有高度庞大取代基的炔烃,2,2,5,5-四甲基-3-己炔(6a)、1,2-双(1-金刚烷基)乙炔(6b)、3,3-二甲基-1-苯基-1-丁炔(6c)和1-(1-金刚烷基)-2-苯乙炔(6d),与硫反应得到相应的稳定1,2-二硫杂环己烯7a—d,产率为46—65%。取代基较少的炔烃与硫反应得到1,4-二硫杂苯和噻吩作为最终产物,这些产物由初始产物1,2-二硫杂环己烯通过其互变异构化形成相应的1,2-二硫氧化物得到,而极其拥挤的炔烃即使在强制条件下也无法与硫反应。另一方面,典型的富电子炔烃亚胺,1-二乙氨基-2-苯硫乙炔(6o)、1-二乙氨基-2-苯硒乙炔(6p)和四乙基乙炔二胺(6q),在较温和的条件下被硫化得到共振稳定的1,2-二硫氧化物19o—q作为主要产物。讨论了1,2-二硫杂环己烯、1,2-二硫氧化物和其他产物的形成机理。
  • Divergent Reactivity of α,α-Disubstituted Alkenyl Hydrazones: Bench Stable Cyclopropylcarbinyl Equivalents
    作者:Nina F. C. Ritchie、Adam J. Zahara、Sidney M. Wilkerson-Hill
    DOI:10.1021/jacs.1c12881
    日期:2022.2.9
    N-tosylhydrazones using Pd-catalyzed cross-coupling conditions, which enable the Z-selective synthesis of 3-aryl-1,4-dienes and gem-dialkyl vinylcyclopropanes. We found that the dialkylbiaryl phosphine ligand SPhos was the optimal ligand for this transformation producing skipped dienes in up to 83% isolated yield. The ratio of skipped diene to vinylcyclopropane is dependent on both the structure of the α,α-disubstituted
    在这里,我们报告了使用 Pd 催化的交叉偶联条件的 2,2-二烷基-3-( E )-烯基N-甲苯磺酰腙的不同反应性,这使得Z选择性合成 3-aryl-1,4-二烯和偕二烷基乙烯基环丙烷。我们发现二烷基联芳基膦配体 SPhos 是这种转化产生跳跃二烯的最佳配体,分离产率高达 83%。跳过的二烯与乙烯基环丙烷的比例取决于 α,α-二取代腙和芳基卤化物配对物的结构。使用空间位阻芳基溴提供反式-环丙烷产品选择性地高达 69% 的产率。该反应具有立体特异性和立体选择性,并与竞争的 1,2-烯基迁移途径一起发生。
  • Transition-Metal-Free Coupling of Alkynes with α-Bromo Carbonyl Compounds: An Efficient Approach towards β,γ-Alkynoates and Allenoates
    作者:Wenbo Liu、Zhengwang Chen、Lu Li、Haining Wang、Chao-Jun Li
    DOI:10.1002/chem.201600219
    日期:2016.4.18
    A direct transition‐metal‐free coupling between alkynes and α‐bromo carbonyl compounds has been developed with ultraviolet (UV) light in aqueous media. This method represents a facile approach to synthetically useful β,γ‐alkynyl esters and amides stereoselectively from two readily available starting materials. As an example of the synthetic application of the products, the alkynyl esters were readily
    炔烃和α-溴代羰基化合物之间的无过渡金属直接偶联已在水性介质中用紫外线(UV)进行了开发。该方法代表了一种简便的方法,可以从两种容易获得的起始原料中立体选择性地合成合成有用的β,γ-炔基酯和酰胺。作为产物合成应用的一个例子,炔基酯很容易转化为烯丙酸酯。
  • Synthesis of 2(3<i>H</i>)-Furanones via Electrophilic Cyclization
    作者:Ziwei W. Just、Richard C. Larock
    DOI:10.1021/jo702666j
    日期:2008.4.1
    variety of highly substituted 2(3H)-furanones are readily prepared from 3-alkynoate esters and the corresponding acids via electrophilic cyclization. Successful electrophiles in this process include I2, ICl, and PhSeCl. This highly efficient process proceeds under mild conditions, tolerates various functional groups, and generally provides substituted 2(3H)-furanones in good to excellent yields.
    由3-链烷酸酯和相应的酸通过亲电环化容易地制备各种高度取代的2(3H)-呋喃酮。在该过程中成功的亲电试剂包括I 2,ICl和PhSeCl。这种高效的方法在温和的条件下进行,可以耐受各种官能团,并且通常以高至极好的收率提供取代的2(3 H)-呋喃酮。
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