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1,1-二溴-2-(邻氰基苯基)乙烯 | 167558-53-4

中文名称
1,1-二溴-2-(邻氰基苯基)乙烯
中文别名
——
英文名称
1,1-Dibromo-2-(o-cyanophenyl)ethene
英文别名
1,1-dibromo-2-(2-cyanophenyl)ethene;2-(2,2-dibromovinyl)benzonitrile;1,1-dibromoethene;2-(2,2-Dibromoethenyl)benzonitrile
1,1-二溴-2-(邻氰基苯基)乙烯化学式
CAS
167558-53-4
化学式
C9H5Br2N
mdl
——
分子量
286.953
InChiKey
KJCPTYHQRPBJBG-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

  • 熔点:
    84-85 °C
  • 沸点:
    351.5±32.0 °C(Predicted)
  • 密度:
    1.87±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.9
  • 重原子数:
    12
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    23.8
  • 氢给体数:
    0
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    Electrophilic Reactions of Carbenoids. Synthesis of Fused Heterocyclic Systems via Intramolecular Nucleophilic Substitution of Carbenoids
    摘要:
    Intramolecular nucleophilic substitution of carbenoids with oxygen, nitrogen, and sulfur nucleophiles leading to the synthesis of fused heterocyclic compounds has been studied. For the purpose of this investigation styryl type gem-dihalides 4, 8, 18, 20, 28 containing a nucleophilic substituent in the ortho position of the aromatic ring have been synthesized. Carbenoids have been generated in those systems by the halogen-metal exchange reaction and shown to readily undergo intramolecular nucleophilic substitution by the properly located nucleophilic group (OH, SH, or NH2). As a result a new synthetic route to benzofurans, thianaphthenes, and indoles has been established based on nucleophilic substitution of vinyl halides by an ortho substituent. The dramatic increase of reactivity of vinyl halides upon introduction of lithium has been explained as being due to metal-assisted ionization.
    DOI:
    10.1021/jo00122a046
  • 作为产物:
    描述:
    四溴化碳2-氰基苯甲醛三苯基膦 作用下, 以 二氯甲烷 为溶剂, 反应 1.58h, 生成 1,1-二溴-2-(邻氰基苯基)乙烯
    参考文献:
    名称:
    两相体系中具有卤化氢水溶液的α-卤代酰胺,乙烯基硫醚和乙烯基醚的高度区域选择性和立体选择性合成
    摘要:
    实现了使用HX(X = F,Cl,Br,I)水溶液的无金属区域和立体选择性方法,用于制备(E)构型的α-卤代酰胺,乙烯基硫醚和乙烯基醚组相容性和区域和立体选择性,温和条件,高效率和快速转化。另外,可通过光催化或在Sonogashira偶联条件下容易地由(E)-构型的α-卤代酰胺产生异构体。
    DOI:
    10.1021/acs.orglett.8b01809
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文献信息

  • Copper-Mediated Selective Cross-Coupling of 1,1-Dibromo-1-alkenes and Heteronucleophiles: Development of General Routes to Heterosubstituted Alkynes and Alkenes
    作者:Kévin Jouvin、Alexis Coste、Alexandre Bayle、Frédéric Legrand、Ganesan Karthikeyan、Krishnaji Tadiparthi、Gwilherm Evano
    DOI:10.1021/om3005614
    日期:2012.11.26
    site-selective, double, or alkynylative cross-coupling, therefore providing divergent and straightforward entries to numerous building blocks such as bromoenamides, ynamides, ketene N,N-acetals, bromoenol ethers, ynol ethers, ketene O,O-acetals, or vinylphosphonates and further expanding the copper catalysis toolbox with useful and versatile processes.
    据报道,有效的和通用的程序是将1,1-二溴代烯烃与N-,O-和P-亲核试剂进行交叉偶联。反应条件的微调允许位点选择性,双重或炔基交叉偶联,因此为许多结构单元(如溴酰胺,乙酰胺,乙烯酮N,N-乙缩醛,溴烯醇醚,炔醇醚)提供了分散而直接的入口,乙烯酮O,O-乙缩醛或乙烯基膦酸酯,并通过有用的通用方法进一步扩展了铜催化工具箱。
  • Metal-Free [2 + 2 + 2] Cycloaddition of Ynamide–Nitriles with Ynamides: A Highly Regio- and Chemoselective Synthesis of δ-Carboline Derivatives
    作者:Hao Wen、Wei Cao、Yu Liu、Liang Wang、Ping Chen、Yu Tang
    DOI:10.1021/acs.joc.8b02112
    日期:2018.11.2
    A metal-free formal [2 + 2 + 2] cycloaddition of functionalized ynamide–nitriles with ynamides is disclosed which offers highly efficient access to polysubstituted δ-carboline derivatives under the mediation of TfOH. This strategy is highly regioselective and chemoselective and displays mild conditions, high yields, and efficiency (within 1 min) in addition to substrates scopes (56 examples).
    公开了官能化的乙酰胺腈与乙酰胺的无金属甲醛[2 + 2 + 2]环加成反应,在TfOH的介导下,可以高效地获得多取代的δ-咔啉衍生物。该策略具有很高的区域选择性和化学选择性,除了底物范围(56个例子)外,还显示出温和的条件,高产率和效率(1分钟内)。
  • The Stille Reaction of 1,1-Dibromo-1-alkenes:  Preparation of Trisubstituted Alkenes and Internal Alkynes
    作者:Wang Shen、Le Wang
    DOI:10.1021/jo991116k
    日期:1999.11.1
    The Stille reaction of 1,1-dibromo-1-alkenes 1 with aryl- and vinylstannanes produces different products depending on the reaction conditions. When the reaction is run in toluene or 1,4-dioxane with tris(2-furyl)phosphine (TFP) as the ligand, (Z)-bromoalkenes 2 are obtained stereospecifically in good to excellent yields with most substrates. However, 2-aryl-1,1-dibromo-1-alkenes (1e,1g) having an electron-donating
    1,1-二溴-1-烯烃1与芳基和乙烯基锡烷的斯蒂勒反应根据反应条件产生不同的产物。当反应在甲苯或1,4-二恶烷中以三(2-呋喃基)膦(TFP)为配体进行时,对于大多数底物,立体定向获得(Z)-溴代烯烃2的产率高至优异。然而,在对位或邻位具有供电子甲氧基的2-芳基-1,1-二溴-1-烯(1e,1g)收率很低。该方法已应用于立体有择的三取代烯烃5的一锅合成。当在高偶极溶剂(DMF)中进行Stille反应时,一溴化物2和/或内部炔烃4就是产物。不管使用哪种配体,反应性较低的苯基锡烷都有利于炔烃4的形成。反应性更高的有机锡烷(乙烯基,
  • Catalyst-Free [4+2] Cycloaddition of Ynamides with 2-Halomethyl Phenols To Construct 2-Amino-4<i>H</i>-Chromenes and α-Halo Enamides Simultaneously
    作者:Hao Wen、Weibo Yan、Ping Chen、Yu Li、Yu Tang
    DOI:10.1021/acs.joc.0c01258
    日期:2020.10.16
    We report the development of a facile protocol for the [4+2] cycloaddition of ynamides and 2-halomethyl phenols to afford the corresponding 2-amino-4H-chromenes and α-halo enamides under catalyst-free conditions. The reaction proceeds under mild conditions and exhibits good tolerance toward various functional groups and generates high yields. The plausible mechanism involves the formation of an active
    我们报道了在无催化剂条件下为酰胺和2-卤代甲基苯酚的[4 + 2]环加成反应提供相应的2-氨基-4 H-色烯和α-卤代酰胺的简便方案的发展。反应在温和的条件下进行,对各种官能团表现出良好的耐受性,并产生高收率。可能的机理包括活性中间体酮亚胺以及邻亚甲基醌的形成。
  • An efficient method for one-carbon elongation of aryl aldehydes via their dibromoalkene derivatives
    作者:Dal Ho Huh、Ji Sang Jeong、Hee Bong Lee、Hoejin Ryu、Young Gyu Kim
    DOI:10.1016/s0040-4020(02)01324-8
    日期:2002.12
    Various aryl aldehydes were efficiently converted into one-carbon extended aryl acetamides or aryl acetic acids through the reaction of their dibromoalkene derivatives with pyrrolidine in the presence of water under very mild conditions.
    通过在非常温和的条件下,在水的存在下,它们的二溴代烯烃衍生物与吡咯烷反应,将各种芳基醛有效地转化为一个碳原子扩展的芳基乙酰胺或芳基乙酸。
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同类化合物

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