ethyl 2-methylene-5-phenylpentanoate | 27356-88-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: ethyl 2-methylene-5-phenylpentanoate
• 英文别名: 5-Phenyl-2-methylenevaleric acid ethyl ester；ethyl 2-methylidene-5-phenylpentanoate
• CAS: 27356-88-3
• 化学式: C₁₄H₁₈O₂
• 分子量: 218.296
• InChiKey: NWHKBOBVLFICRQ-UHFFFAOYSA-N

物化性质

• 沸点：
  78-79 °C(Press: 0.02 Torr)
• 密度：
  0.993±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  16
• 可旋转键数：
  7
• 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-methylene-5-phenylpentanoate 在 palladium on activated charcoal sodium hydroxide 、 ammonium formate 、 sodium carbonate 、 六甲基二硅氮烷 、 silver(l) oxide 作用下， 以 1,4-二氧六环 、 甲醇 、 氯仿 为溶剂， 反应 28.7h， 生成 2-[[1-adamantyloxy-[1-(9H-fluoren-9-ylmethoxycarbonylamino)-2-phenylethyl]phosphoryl]methyl]-5-phenylpentanoic acid
  参考文献：
  名称：

  Phosphinic Pseudo-Tripeptides as Potent Inhibitors of Matrix Metalloproteinases:  A Structure−Activity Study

  摘要：

  Several phosphinic pseudo-tripeptides of general formula R-Xaa Psi (PO2-CH2)Xaa'-Yaa'-NH2 were synthesized and evaluated for their in vitro activities to inhibit stromelysin-3, gelatinases A and B, membrane type-1 matrix metalloproteinase, collagenases 1 and 2, and matrilysin. With the exception of collagenase-1 and matrilysin, phosphinic pseudo-tripeptides behave as highly potent inhibitors of matrix metalloproteinases, provided they contain in P-1' position an unusual long aryl-alkyl substituent. Study of structure-activity relationships regarding the influence of the R and Xaa' substituents in this series may contribute to the design of inhibitors able to block only a few members of the matrix metalloproteinase family.

  DOI：

  10.1021/jm9900164
• 作为产物：
  描述：

  3-phenylpropyl-magnesium bromide 在 甲基三苯基溴化膦 、 双(三甲基硅烷基)氨基钾 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 ethyl 2-methylene-5-phenylpentanoate
  参考文献：
  名称：

  Switchable C–H Functionalization of N-Tosyl Acrylamides with Acryloylsilanes

  摘要：

  A controllable Rh-catalyzed protocol to access alkylation and akenylation-annulation off N-tosyl acrylamide with, acryloyl silane is reported. In contrast to the directing group or catalyst-dependent divergent sp(2) C-H alkylation/alkenylation the instrinsic property of acryloylsilane allows the switchable reaction manifold, thereby affording either alkylation or alkylation Products with slight modification of the reaction conditions.

  DOI：

  10.1021/acs.orglett.7b01107

文献信息

• Preparation of Alkylmagnesium Reagents from Alkenes through Hydroboration and Boron-Magnesium Exchange
  作者：Markus A. Reichle、Bernhard Breit

  DOI：10.1002/anie.201201704

  日期：2012.6.4

  Tolerant: Alkylmagnesium reagents can be synthesized from alkenes through a sequence of hydroboration and subsequent boron–magnesium exchange using a method that tolerates different functional groups (see scheme). The resulting alkylmagnesium reagents can be used in carbon–carbon bond forming reactions, such as alkylation reactions or transition‐metal‐catalyzed cross‐coupling reactions.

  宽容：烷基镁试剂可从烯烃通过硼氢化反应和随后的硼镁交换的序列使用容忍不同的官能团的方法（参见方案）来合成。所得的烷基镁试剂可用于碳-碳键形成反应，例如烷基化反应或过渡金属催化的交叉偶联反应。
• A General Approach to Deboronative Radical Chain Reactions with Pinacol Alkylboronic Esters
  作者：Emy André‐Joyaux、Andrey Kuzovlev、Nicholas D. C. Tappin、Philippe Renaud

  DOI：10.1002/anie.202004012

  日期：2020.8.10

  suitable substrates. We report their in situ conversion into alkylboronic catechol esters by boron‐transesterification with a substoichiometric amount of catechol methyl borate combined with an array of radical chain processes. This simple one‐pot radical‐chain deboronative method enables the conversion of pinacol boronic esters into iodides, bromides, chlorides, and thioethers. The process is also suitable

  由空气敏感的有机硼化合物通过硼的核均热取代生成以碳为中心的自由基是生成未官能化和官能化自由基的通用方法。由于降低的路易斯酸度，烷基硼酸频哪醇酯不是合适的底物。我们报道了它们通过硼亚基酯交换与亚化学计量的邻苯二酚甲基硼酸酯结合一系列自由基链过程而原位转化为烷基硼邻苯二酚酯。这种简单的单锅自由基链脱硼方法可将频哪醇硼酸酯转化为碘化物，溴化物，氯化物和硫醚。该方法也适用于使用磺酰基自由基捕获剂通过C-C键形成腈和烯丙基化的化合物。
• Stereoselective Synthesis of <i>Z</i>-Vinylsilanes via Palladium-Catalyzed Direct Intermolecular Silylation of C(sp²)–H Bonds
  作者：Jin-Long Pan、Chao Chen、Zhi-Gang Ma、Jia Zhou、Li-Ren Wang、Shu-Yu Zhang

  DOI：10.1021/acs.orglett.7b02486

  日期：2017.10.6

  An efficient and convenient palladium-catalyzed direct intermolecular silylation of C(sp2)–H bonds by using disilanes as the silicon source with the assistance of a readily removable bidentate directing group is reported. This strategy provided a regio- and stereoselective protocol for exclusive synthesis of Z-vinylsilanes with reasonable to excellent yields and good functional group compatibility

  据报道，通过使用乙硅烷作为硅源，借助易于去除的双齿引导基团，可以有效，方便地催化钯催化的C（sp 2）-H键直接分子间甲硅烷基化。该策略为Z-乙烯基硅烷的独家合成提供了区域和立体选择性的方案，具有合理至优异的收率和良好的官能团相容性。分离的palladacycle中间体的甲硅烷基化揭示了Z-立体选择性途径。此外，该方法的实用性和有效性通过克规模的实验和甲硅烷基化产物的进一步功能化进行了说明。
• Stereo- and Chemoselective Cross-Coupling between Two Electron-Deficient Acrylates: An Efficient Route to (<i>Z</i>,<i>E</i>)-Muconate Derivatives
  作者：Xu-Hong Hu、Jian Zhang、Xiao-Fei Yang、Yun-He Xu、Teck-Peng Loh

  DOI：10.1021/ja512237d

  日期：2015.3.11

  A Ru-catalyzed direct oxidative cross-coupling reaction of acrylates was developed. It offers a straightforward and atom-economical protocol for the synthesis of functionalized (Z,E)-muconate derivatives in moderate to good yields with good stereo- and chemoselectivities. The conjugated muconates bearing differentiable terminal functionality can be selectively transformed into versatile synthetic intermediates

  开发了 Ru 催化的丙烯酸酯直接氧化交叉偶联反应。它提供了一种简单且原子经济的方案，用于以中等至良好的收率合成功能化的 (Z,E)-粘康酸酯衍生物，并具有良好的立体选择性和化学选择性。带有可区分末端功能的共轭粘康酸盐可以选择性地转化为广泛用于有机合成的多功能合成中间体。
• Synthesis and hypoglycemic activity of phenylalkyloxiranecarboxylic acid derivatives
  作者：Klaus Eistetter、Horst P. O. Wolf

  DOI：10.1021/jm00344a003

  日期：1982.2

  A series of new 2-(phenylalkyl)oxirane-2-carboxylic acids has been synthesized and studied for its effects on the concentration of blood glucose. Most of the compounds exhibit remarkable blood glucose lowering activities in fasted rats. Structure-activity studies reveal that substituents like Cl or CF3 on the phenyl ring and a chain length of three to five carbon atoms lead to the most effective substances

  已经合成了一系列新的2-（苯基烷基）环氧乙烷-2-羧酸，并研究了其对血糖浓度的影响。大多数化合物在禁食大鼠中表现出显着的降血糖活性。结构活性研究表明，苯环上的取代基（如Cl或CF3）和三至五个碳原子的链长是最有效的物质。在这些化合物中，2- [5-（4-氯苯基）戊基]环氧乙烷-2-羧酸乙酯（36）表现出最有利的活性。