2-(p-tolyl)hexa-1,5-diene | 65865-00-1

• 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: 2-(p-tolyl)hexa-1,5-diene
• 英文别名: 1-(hexa-1,5-dien-2-yl)-4-methylbenzene；2-(p-Tolyl)-1,5-hexadien；1-Hexa-1,5-dien-2-yl-4-methylbenzene
• CAS: 65865-00-1
• 化学式: C₁₃H₁₆
• 分子量: 172.27
• InChiKey: AJKVJZZMMMNWTJ-UHFFFAOYSA-N

物化性质

• 沸点：
  252.1±20.0 °C(Predicted)
• 密度：
  0.878±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.23
• 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：

  2-(p-tolyl)hexa-1,5-diene 、 1,1-二溴-2-2-二苯基环丙烷 在 四丁基硫酸氢铵 、 sodium hydroxide 作用下， 以 四氢呋喃 为溶剂， 反应 36.0h， 生成 1-(1-(but-3-enyl)-2-(2,2-diphenylvinylidene)cyclopropyl)-4-methylbenzene
  参考文献：
  名称：

  Halogenation Reagents Initiating Ring Opening of Vinylidenecyclopropanes: Easy Access to Halogenated Tetrahydropyrans

  摘要：

  一种新的合成策略被开发出来，使用卤素化试剂（NBS、NIS和selectfluor）来启动与含有醇基链的二芳基乙烯基环丙烷（VDCPs）相关的环内开环反应。该方法在温和条件下提供了多种卤化四氢呱衍生物，产率中等至良好。基于先前的文献，提出了合理的反应机制，并仔细研究了底物范围。

  DOI：

  10.1055/s-0030-1259715
• 作为产物：
  描述：

  1-(4-Methylphenyl)-4-penten-1-ol 在 manganese(IV) oxide 、 potassium tert-butylate 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 生成 2-(p-tolyl)hexa-1,5-diene
  参考文献：
  名称：

  Incorporation of 2-Arylhexa-1,5-diene into Pentasil Zeolite:  A Distorted 1-Arylcyclohexane-1,4-diyl Radical Cation at Room Temperature

  摘要：

  Incorporation into a redox-active pentasil zeolite [(Na,H)-ZSM-5] converted 2-arylhexa-1,5-dienes (9a-c; aryl = phenyl, tolyl, anisyl) into 1-arylcyclohexane-1,4-diyl radical cations, 10a-c(.+). The ESR spectra of 10a-c(.+) (six lines, g = 2.0026; a = 9.0 G) indicated the presence of five essentially equivalent nuclei, indicating limited delocalization of spin and charge into the phenyl group. Sequestered in the pores of ZSM-5, the three species 10a-c(.+) are stable at room temperature, in striking contrast to the parent radical cation in cryogenic matrices: cyclohexane-1,4-diyl radical cation is converted to cyclohexene radical cation above 90 K. The structures of radical cation 10a(.+) (X = H) and of the unsubstituted parent were probed by density functional theory (DFT) and ab initio calculations.

  DOI：

  10.1021/jp046877s

文献信息

• Palladium-Catalyzed Hydrocarbonylative Cyclization of 1,5-Dienes
  作者：Suchen Zou、Bao Gao、Yao Huang、Tianze Zhang、Hanmin Huang

  DOI：10.1021/acs.orglett.9b02230

  日期：2019.8.16

  novel and atom-economic palladium-catalyzed isomerization-hydrocarbonylative cyclization reaction of 1,5-dienes to 2-alkylidenecyclopentanones has been developed, which provides a rapid and straightforward approach to 2-alkylidenecyclopentanones with high stereoselectivity. The reaction was found to proceed via alkene isomerization and selective hydrocarbonylative cyclization to generate 2-alkylidenecyclopentanones

  已经开发了一种新颖的，原子经济的钯催化的1,5-二烯到2-亚烷基环戊烷酮的异构化-羰基化环化反应，它为具有高立体选择性的2-亚烷基环戊烷酮提供了一种快速而直接的方法。发现该反应通过烯烃异构化和选择性的烃基化环化进行，以产生具有高选择性的2-亚烷基环戊酮。
• Reactions of Vinylidenecyclopropanes with Diphenyl Diselenide in the Presence of AIBN and Thermally-Induced Further Transformations
  作者：Wei Yuan、Yin Wei、Min Shi、Yuxue Li

  DOI：10.1002/chem.201103461

  日期：2012.1.27

  vinylidenecyclopropanes with diphenyl diselenide in the presence of AIBN and upon heating gives the corresponding bicyclo[3.1.0]hexane derivatives in good yields. These compounds undergo thermal‐induced radical 1,4‐hydrogen shifts through a ring‐opening pathway of allylic cyclopropane to give the corresponding cyclohexene derivatives stereoselectively in good yields at 200 °C (see scheme).

  自由基变换器：在AIBN存在下并加热后，将亚乙烯基环丙烷与二苯二硒化物化学转化，得到高收率的相应双环[3.1.0]己烷衍生物。这些化合物通过烯丙基环丙烷的开环途径经历热诱导的自由基1,4-氢转移，从而在200°C下以良好的产率立体选择性地生成相应的环己烯衍生物（参见方案）。
• Rates of the Cope rearrangement of some 2-aryl-1,5-hexadienes
  作者：Elliot N. Marvell、Thomas H. C. Li

  DOI：10.1021/ja00471a037

  日期：1978.2
• Rhodium(I)-Catalyzed Intramolecular Ene Reaction of Vinylidenecyclopropanes and Alkenes for the Formation of Bicyclo[5.1.0]octylenes
  作者：Wei Li、Wei Yuan、Min Shi、Erik Hernandez、Guigen Li

  DOI：10.1021/ol902505p

  日期：2010.1.1

  An efficient catalytic system for the intramolecular ene reaction of allene and alkene of diarylvinylidenecyclopropanes has been established. The reaction was achieved by using [RhCl(CO)(2)](2) as the catalyst In co-solvents of toluene and acetonitrile. MeCN was found to play a crucial role in controlling the reaction toward formation of bicyclo[5.1.0]octylene derivatives. An alternative system consisting of [RhCl(CO)(2)](2) and toluene in the absence of MeCN was found to give [2 + 2] cycloaddition adducts. The structures have been unambiguously determined by X-ray structural analysis. Deuterium labeling experiments were conducted to confirm the mechanism hypothesis.
• Au/Ag-Catalyzed Intramolecular Ring-Opening of Vinylidene-cyclopropanes (VDCPs): An Easy Access to Functional Tetrahydropyrans
  作者：Wei Li、Wei Yuan、Surech Pindi、Min Shi、Guigen Li

  DOI：10.1021/ol902832s

  日期：2010.3.5

  An intramolecular ring-opening of vinylidenecyclopropanes (VDCPs) tethered with alcohol chains has been established. A series of transition metal catalysts and their combinations have been screened under mild conditions, and a cocatalyst system consisting of [(Ph3PAu)(3)O]BF4 (4 mol %) and AgOTf (4 mol %) was found to catalyze the reaction to completion within 10-30 min in 1,4-dioxane at 60 degrees C to give allene-functionalized tetrahydropyrans.