(2Z)-but-2-en-1-ylbenzene | 15324-90-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2Z)-but-2-en-1-ylbenzene
• 英文别名: (Z)-but-2-en-1-ylbenzene；((Z)-but-2-enyl)benzene；but-2-en-1-ylbenzene；Benzene, 2-butenyl-, cis；[(Z)-but-2-enyl]benzene
• CAS: 15324-90-0
• 化学式: C₁₀H₁₂
• 分子量: 132.205
• InChiKey: VUKHQPGJNTXTPY-IHWYPQMZSA-N

物化性质

• 沸点：
  176.0±0.0 °C(Predicted)
• 密度：
  0.887±0.06 g/cm3(Predicted)
• 保留指数：
  1071

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (2Z)-but-2-en-1-ylbenzene 在 copper(II) nitrate 、 三氟乙酸酐 作用下， 反应 2.5h， 生成 1-((Z)-But-2-enyl)-4-nitro-benzene
  参考文献：
  名称：

  Mechanistic Studies of an Antibody-Catalyzed Elimination Reaction

  摘要：

  Catalytic antibody 43D4-3D12, which was generated against the substituted tertiary amine 1, catalyzes the elimination of HF from beta-fluoroketone 2. We have cloned and produced the antibody as a chimeric Fab and constructed a model of the active site-substrate complex. Mutagenesis studies of the active site indicate that Glu(H)50 acts as the general base and suggest that Tyr96(L) may also play a role in the elimination reaction. Antibody 43D4-3D12 also efficiently catalyzes the elimination of HBr from substrate 4 by an E2 mechanism, again involving selective abstraction of the proton beta-to the nitrophenyl ring by Glu(H)50. The antibody-catalyzed reaction affords predominantly the internal olefins, whereas the major product resulting from the uncatalyzed reaction is the alcohol, which arises from the competing substitution reaction. In addition, antibody 43D4-3D12 catalyzes an acetal hydrolysis reaction in which Glu(H)50 likely acts as a general acid. These studies point to the success of this particular hapten design strategy in generating an active site with a desired catalytic functional group. They also illustrate the utility of using related reactions as mechanistic probes of biological catalysis.

  DOI：

  10.1021/ja9738992
• 作为产物：
  描述：

  2-苄基乙酰乙酸乙酯 在 氢氧化钾 、 N,N-二甲基甲酰胺二甲基缩醛 、 蔗糖 作用下， 以 乙醇 、 氯仿 、 水 为溶剂， 反应 3.0h， 生成 (2Z)-but-2-en-1-ylbenzene
  参考文献：
  名称：

  手性β-羟基酯的立体选择性α-烷基化及其一些应用

  摘要：

  讨论了手性β-羟基酯的α-烷基化的立体选择性。通过化学方法证明了烷基化产物的构型（方案2）。进行了一锅羟醛烷基化反应，立体选择性地生成了外消旋（s *，s *）-α-烷基-β-羟基酯（方案3,4）。贝克的2-烷基-3-酮酯的酵母还原反应产生了有价值的手性（2 RS，3 S）中间体，该中间体通过相应的二价阴离子转化为具有手性季C原子的化合物（方案6）。上述发现的合成应用显示在各种手性化合物的合成中（方案8和9）。

  DOI：

  10.1016/s0040-4020(01)82413-3

文献信息

• Synthesis of Allylamine Derivatives <i>via</i> Intermolecular Aza‐Wacker‐Type Reaction Promoted by Palladium‐SPRIX Catalyst
  作者：Abhijit Sen、Linpeng Zhu、Shinobu Takizawa、Kazuhiro Takenaka、Hiroaki Sasai

  DOI：10.1002/adsc.202000644

  日期：2020.9.8

  intermolecular aza‐Wacker‐type reaction was developed. When a readily available olefin was treated with a nitrogen nucleophile in the presence of a Pd‐SPRIX complex and potassium persulfate, allylamine derivatives were obtained with high yield and excellent regioselectivity. The mechanistic studies showed that the reaction followed first‐order dependence on the olefin as well as palladium catalyst, but

  发生了分子间的氮杂-瓦克型反应。当在Pd-SPRIX配合物和过硫酸钾存在下用氮亲核试剂处理易得的烯烃时，可以获得高收率和极高的区域选择性的烯丙胺衍生物。机理研究表明，该反应遵循对烯烃以及钯催化剂的一阶依赖性，但对氮亲核试剂的阶跃依赖性为零。
• Hindered organoboron groups in organic chemistry. 25. The condensation of aliphatic aldehydes with dimesitylboryl stabilised carbanions to give alkenes.
  作者：Andrew Pelter、Keith Smith、Said M.A. Elgendy

  DOI：10.1016/s0040-4020(01)87983-7

  日期：1993.8

  In the presence of protic acids the condensation of aliphatic aldehydes with dimesitylboryl stabilised carbanions results in alkenes. In the presence of strong acids such as HCl or CF3SO3H, the products contain > 90% of E-alkenes in all cases tried. When acetic acid is used, then Z-alkenes may result predominantly, particularly in the cases of RsCHO and RtCHO. HX  HCI, CF3SO3H gives E - alkenes in

  在质子酸的存在下，脂族醛与二聚三苯甲基稳定的碳负离子的缩合会生成烯烃。在强酸（例如HCl或CF 3 SO 3 H）的存在下，在所有尝试的情况下，产品均含有> 90％的E-烯烃。当使用乙酸时，则可能主要产生Z-烯烃，特别是在R s CHO和R t CHO的情况下。在所有情况下，HXHCl，CF 3 SO 3 H均会生成E-烯烃。HXCH 3 CO 2 H，使得主要ž -烯烃当Rř秒，R叔。
• Controllable Isomerization of Alkenes by Dual Visible‐Light‐Cobalt Catalysis
  作者：Qing‐Yuan Meng、Tobias E. Schirmer、Kousuke Katou、Burkhard König

  DOI：10.1002/anie.201900849

  日期：2019.4.16

  We report herein that thermodynamic and kinetic isomerization of alkenes can be accomplished by the combination of visible light with Co catalysis. Utilizing Xantphos as the ligand, the most stable isomers are obtained, while isomerizing terminal alkenes over one position can be selectively controlled by using DPEphos as the ligand. The presence of the donor–acceptor dye 4CzIPN accelerates the reaction

  我们在本文中报道，烯烃的热力学和动力学异构化可以通过将可见光与Co催化相结合来完成。使用黄磷作为配体，可以获得最稳定的异构体，而通过使用DPEphos作为配体可以选择性地控制末端烯烃的异构化。供体-受体染料4CzIPN的存在进一步促进了反应。在没有任何其他配体的情况下，通过使用4CzIPN和Co（acac）2可以有效地实现环外烯烃向相应内环产物的转化。光谱学和光谱电化学研究表明，Co I参与了Co氢化物的生成，而Co氢化物随后会添加到烯烃中以引发异构化反应。
• Pd-Boron-Catalyzed One Carbon Isomerization of Olefins: Water Assisted Process at Room Temperature
  作者：Devi Prasan Ojha、Karthik Gadde、Kandikere Ramaiah Prabhu

  DOI：10.1021/acs.joc.7b00580

  日期：2017.5.5

  ne-system -catalyzed isomerization of olefins has been uncovered. An efficient catalytic combination of [Pd(OAc)2]3-boronate-PCy3-enabled olefin isomerization at 80 °C has been investigated. Addition of water to the reaction showed a remarkable improvement and the isomerization occurred at ambient temperature. These catalytic systems function efficiently for the isomerization of functionalized as well

  现已发现钯-硼酸酯/硼烷体系催化的烯烃异构化。的有效的催化组合[将Pd（OAc）2 ] 3 -硼酸-PCY 3 -启用烯烃异构化在80℃下进行了研究。向反应中添加水显示出显着的改善，并且在环境温度下发生了异构化。这些催化体系有效地用于官能化的和未官能化的烯烃的异构化。催化条件显示了非氢化物和金属氢化物介质的参与，并且可以与水作为添加剂互换。
• Chemo- and regioselective reductive transposition of allylic alcohol derivatives <i>via</i> iridium or rhodium catalysis
  作者：Rylan J. Lundgren、Bryce N. Thomas

  DOI：10.1039/c5cc07993d

  日期：——

  The selective, catalytic deoxygenation of alcohols remains a persistent challenge in organic synthesis. Pd-catalyzed formate reduction and diazene-mediated reductive transposition are both valuable strategies for the selective deoxygenation of allylic...

  醇的选择性催化脱氧仍然是有机合成中的持续挑战。钯催化的甲酸还原和重氮介导的还原转座都是对烯丙基苯酚进行选择性脱氧的有价值的策略。