ethyl (E)-3-(2,6-dimethylphenyl)acrylate | 527759-23-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: ethyl (E)-3-(2,6-dimethylphenyl)acrylate
• 英文别名: ethyl (E)-3-(2,6-dimethylphenyl)-2-propenoate；ethyl (2E)-3-(2,6-dimethylphenyl)prop-2-enoate；ethyl (E)-3-(2,6-dimethylphenyl)prop-2-enoate
• CAS: 527759-23-5
• 化学式: C₁₃H₁₆O₂
• 分子量: 204.269
• InChiKey: VSTRIGOGIZNXNW-CMDGGOBGSA-N

物化性质

• 沸点：
  297.4±9.0 °C(Predicted)
• 密度：
  1.024±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.31
• 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 (E)-3-(2,6-dimethylphenyl)acrylate 在 palladium on activated charcoal 氢气 、 silica gel 、 碳酸氢钠 、 臭氧 、 pyridinium chlorochromate 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 正己烷 、 二氯甲烷 为溶剂， -70.0~20.0 ℃ 、101.33 kPa 条件下， 反应 21.77h， 生成 4-(2,6-dimethylbenzyl)-5,5-dimethyldihydro-2(3H)-furanone
  参考文献：
  名称：

  Efficient Approach to 4‐Benzyl‐5,5‐dimethyldihydrofuranones: Total Synthesis of (±_bold;)‐Solafuranone

  摘要：

  DOI：

  10.1080/00397910601163919
• 作为产物：
  描述：

  2,6-二甲基苄醇 在 4 A molecular sieve 、 Celite 、 pyridinium chlorochromate 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 4.0h， 生成 ethyl (E)-3-(2,6-dimethylphenyl)acrylate
  参考文献：
  名称：

  2‘,6‘-Dimethylphenoxyacetyl:  A New Achiral High Affinity P₃-P₂ Ligand for Peptidomimetic-Based HIV Protease Inhibitors

  摘要：

  Starting from palinavir (1), our lead HIV protease inhibitor, we have discovered a new series of truncated analogues in which the P-3-P-2 quinaldic-valine portion of 1 was replaced by 2',6'-dimethylphenoxyacetyl. With EC50's in the 1-2 nM range, some of these compounds are among the most potent inhibitors of HIV replication in vitro, reported to date. One of the most promising members in this series (compound 27, BILA 2185 BS) exhibited a favorable overall pharmacokinetic profile, with 61% apparent oral bioavailability in rat. X-ray crystal structures and molecular modeling were used to rationalize the high potency resulting from incorporation of this structurally simple, achiral ligand into the P-3-P-2 position of hydroxyethylamine-based HIV protease inhibitors.

  DOI：

  10.1021/jm990336n

文献信息

• Generation of Phosphoranes Derived from Phosphites. A New Class of Phosphorus Ylides Leading to High <i>E</i> Selectivity with Semi-stabilizing Groups in Wittig Olefinations
  作者：Varinder K. Aggarwal、J. Robin Fulton、Chris G. Sheldon、Javier de Vicente

  DOI：10.1021/ja029573x

  日期：2003.5.1

  Tosylhydrazones derived from aryl aldehydes react with t-BuOK, ClFeTPP, (MeO)3P, and aldehydes to furnish olefins with high E selectivity. These reactions occur through a Wittig-type pathway via the corresponding diazo compounds, metal carbenes and phosphorous ylides, with the water-soluble trimethyl phosphate as the byproduct. Similar reactions can also be performed using ethyl diazoacetate; however

  源自芳基醛的甲苯磺酰腙与 t-BuOK、ClFeTPP、(MeO)3P 和醛反应以提供具有高 E 选择性的烯烃。这些反应通过相应的重氮化合物、金属卡宾和磷叶立德通过 Wittig 型途径发生，副产物为水溶性磷酸三甲酯。使用重氮乙酸乙酯也可以进行类似的反应；然而，仅在 LiBr 存在下才观察到高 E 选择性。在这种情况下，该反应被认为是通过通过 Arbuzov 反应形成的膦酸阴离子发生的。因此，该烯化反应通过 Horner-Wadsworth-Emmons (HWE) 反应发生，但膦酸阴离子是在完全无碱的条件下生成的。
• An Efficient and General Method for the Heck and Buchwald–Hartwig Coupling Reactions of Aryl Chlorides
  作者：Dong-Hwan Lee、Abu Taher、Shahin Hossain、Myung-Jong Jin

  DOI：10.1021/ol202177k

  日期：2011.10.21

  The β-diketiminatophosphane Pd complex acted as a powerful catalyst for the Heck coupling of aryl chlorides with alkenes. Various aryl and heteroaryl chlorides were coupled efficiently under relatively mild conditions. Furthermore, this catalytic system also proved to be highly active in the Buchwald–Hartwig coupling of deactivated and sterically hindered aryl chlorides at room temperature.

  β-二酮基亚氨基膦Pd络合物可作为芳基氯化物与烯烃的Heck偶联的有力催化剂。在相对温和的条件下有效地偶联了各种芳基和杂芳基氯化物。此外，在室温下，这种催化体系在失活的和位阻的芳基氯化物的布赫瓦尔德-哈特维格偶联中也被证明具有很高的活性。
• Rh(III)-Catalyzed Enaminone-Directed C–H Coupling with α-Diazo-α-phosphonoacetate for Reactivity Discovery: Fluoride-Mediated Dephosphonation for C–C Coupling Reactions
  作者：Chao Song、Chen Yang、Hua Zeng、Wenjing Zhang、Shan Guo、Jin Zhu

  DOI：10.1021/acs.orglett.8b01406

  日期：2018.7.6

  Rh(III)-catalyzed enaminone-directed C–H coupling with α-diazo-α-phosphonoacetate has been used for the identification of fluoride-mediated dephosphonation C–C coupling reactivity for the synthesis of 4-hydroxy-1-naphthoates. Intermolecular C–C coupling of α-phosphonoacetate and benzaldehyde for (E)-selective α,β-unsaturated ester synthesis has also been achieved.

  Rh（III）催化的与α-重氮-α-膦酰基乙酸酯结合的烯胺酮定向的C–H偶联已用于鉴定氟化物介导的膦酰基化的C–C偶联反应，用于合成4-羟基-1-萘甲酸酯。还实现了α-膦酰基乙酸酯和苯甲醛的分子间CC偶联，用于（E）-选择性α，β-不饱和酯的合成。
• P(<i>i</i>-PrNCH₂CH₂)₃N: Efficient Catalyst for Synthesizing β-Hydroxyesters and α,β-Unsaturated Esters using α-Trimethylsilylethylacetate (TMSEA)
  作者：Kuldeep Wadhwa、John G. Verkade

  DOI：10.1021/jo900477q

  日期：2009.6.5

  We present an efficient synthesis of β-hydroxyesters and α,β-unsaturated esters via activation of the silicon−carbon bond of α-trimethylsilylethylacetate using catalytic amounts of the commercially available P(i-PrNCH2CH2)3N 1a. Selectivity for either of these two products can be achieved simply by altering the catalyst loading and reaction temperature to afford addition or stereoselective condensation

  我们提出了通过使用催化量的市售P（i- PrNCH 2 CH 2）3 N 1a活化α-三甲基甲硅烷基乙酸乙酯的硅碳键来有效合成β-羟基酯和α，β-不饱和酯的方法。通过改变催化剂的加入量和反应温度以提供加成或立体选择性缩合，可以简单地实现对这两种产物中任一种的选择性。这种方法比较温和，可以耐受各种各样的官能团。
• Iron(III) and Ruthenium(II) Porphyrin Complex-Catalyzed Selective Olefination of Aldehydes with Ethyl Diazoacetate
  作者：Ying Chen、Lingyu Huang、Meera A. Ranade、X. Peter Zhang

  DOI：10.1021/jo0341158

  日期：2003.5.1

  The commercially available Fe(III) and Ru(II) porphyrin complexes Fe(TPP)Cl and Ru(TPP)(CO) are efficient catalysts for selective olefination of a variety of aldehydes with ethyl diazoacetate in the presence of triphenylphosphine. The reactions were carried out under mild conditions in a one-pot fashion with the use of a stoichiometrical amount of EDA, which proceeded with excellent yields and high

  市售的Fe（III）和Ru（II）卟啉配合物Fe（TPP）Cl和Ru（TPP）（CO）是在三苯基膦的存在下用重氮乙酸乙酯将多种醛选择性烯化的有效催化剂。反应是在温和条件下以一锅法方式使用化学计量的EDA进行的，该反应以优异的收率和高（E）选择性进行。还证明了空气气氛，低催化剂载量和官能团耐受性。