(4-methoxyphenyl)methyl (2E)-but-2-enoate | 923571-42-0

• 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: (4-methoxyphenyl)methyl (2E)-but-2-enoate
• 英文别名: (E)-4-methoxybenzyl but-2-enoate；(4-methoxyphenyl)methyl (E)-but-2-enoate
• CAS: 923571-42-0
• 化学式: C₁₂H₁₄O₃
• 分子量: 206.241
• InChiKey: LAQIXNDRSOLATB-ONEGZZNKSA-N

物化性质

• 沸点：
  296.1±15.0 °C(Predicted)
• 密度：
  1.069±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (4-methoxyphenyl)methyl (2E)-but-2-enoate 、 二苯基二硒醚 在 triethylamine pentahydrogen fluoride salt 作用下， 以 硝基甲烷 为溶剂， 以59%的产率得到p-methoxybenzyl 3-fluoro-2-(phenylselenyl)butanoate
  参考文献：
  名称：

  Electrochemical fluoro-selenenylation of electron-deficient olefins

  摘要：

  Electrochemical fluoro-selenenylation of electron-deficient olefins like a,p-unsaturated ester, carboxylic acid, amide, and phosphonate was successfully carried out by the anodic oxidation of diphenyl diselenide in the presence of olefins in Et3N center dot 5HF/CH3NO2. The anodically generated benzeneselenenyl fluoride [PhSeF] equivalent was stable in the electrolytic solution, which resulted in the efficient fluoro-selenenylation. The fluoro-selenenylation products were shown to be potential useful fluoro-building blocks. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2008.12.068
• 作为产物：
  描述：

  4-methoxybenzyl but-3-enoate 在 basic alumina 作用下， 以 乙酸乙酯 、 Petroleum ether 为溶剂， 以96%的产率得到(4-methoxyphenyl)methyl (2E)-but-2-enoate
  参考文献：
  名称：

  Palladium-Catalyzed Carboxylative Coupling of Benzyl Chlorides with Allyltributylstannane: Remarkable Effect of Palladium Nanoparticles

  摘要：

  Palladium-catalyzed carboxylative coupling of benzyl chlorides with allyltributylstannane was successfully conducted to produce benzyl but-3-enoates in satisfactory to good yields. The carboxylative coupling reaction occurred smoothly under mild conditions in the presence of palladium nanoparticles in tetrahydrofuran.

  DOI：

  10.1021/ol303135e

文献信息

• Diels−Alder Cycloaddition Strategy for Kinetic Resolution of Chiral Pyrazolidinones
  作者：Mukund P. Sibi、Keisuke Kawashima、Levi M. Stanley

  DOI：10.1021/ol901504p

  日期：2009.9.3

  A rare example of the application of a catalytic, enantioselective Diels−Alder cycloaddition to affect a kinetic resolution has been developed. Chiral pyrazolidinones are resolved with high selectivity through a process that utilizes a relay of stereochemical information from a permanent chiral center to a fluxional chiral center to enhance the inherent selectivity of the chiral Lewis acid catalyst

  已经开发了一个罕见的催化，对映选择性Diels-Alder环加成反应影响动力学拆分的例子。通过利用将立体化学信息从永久性手性中心转移至流动性手性中心以增强手性路易斯酸催化剂的固有选择性的方法，以高选择性拆分手性吡唑烷酮。
• PYRROLIDIN-3-YLACETIC ACID DERIVATIVE
  申请人：YOSHIDA Ichiro

  公开号：US20130065925A1

  公开（公告）日：2013-03-14

  A compound represented by formula (1) or a pharmaceutically acceptable salt thereof has an inhibitory effect in the fractalkine-CX3CR1 pathway: wherein R represents a C 1-6 alkyl group unsubstituted or having 1 to 3 substituents selected from Substituent Group A, a C 3-8 cycloalkyl group unsubstituted or having 1 to 3 substituents selected from Substituent Group A, or a C 3-8 cycloalkenyl group unsubstituted or having 1 to 3 substituents selected from Substituent Group A, X represents a C 1-6 alkyl group, Y and Z are the same or different from each other and each represents a halogen atom or a C 1-6 alkyl group unsubstituted or having 1 to 3 substituents selected from Substituent Group B, n represents 0 or 1, Substituent Group A consists of halogen atoms, and Substituent Group B consists of halogen atoms.

  化合物由式（1）表示，或其药学上可接受的盐具有在fractalkine-CX3CR1途径中的抑制作用：其中R代表未取代的或具有1到3个从取代基团A中选择的取代基团的C1-6烷基基团，未取代的或具有1到3个从取代基团A中选择的取代基团的C3-8环烷基基团，或未取代的或具有1到3个从取代基团A中选择的取代基团的C3-8环烯基基团，X代表C1-6烷基基团，Y和Z彼此相同或不同，每个代表卤原子或未取代的或具有1到3个从取代基团B中选择的取代基团的C1-6烷基基团，n代表0或1，取代基团A由卤原子组成，取代基团B由卤原子组成。
• METHOD FOR PRODUCING CARBOXYLIC ACID AMIDE
  申请人：Tomokawa Junichi

  公开号：US20130123505A1

  公开（公告）日：2013-05-16

  A carboxamide can be produced in a high yield by a method for producing a carboxamide, for example, represented by formula (4): (wherein R 1 and R 3 are as defined below), the method comprising a step of allowing a carboxylic acid ester represented by formula (1): (wherein R 1 represents an optionally substituented C 1 -C 20 hydrocarbon group or an optionally substituented C 3 -C 20 heterocyclic group, and R 2 represents an optionally substituented C 1 -C 20 hydrocarbon group), an amine represented by formula (2): R 3 —NH 2 (2) (wherein R 3 represents a hydrogen atom or an optionally substituented C 1 -C 20 hydrocarbon group), and a formamide compound represented by formula (3): (wherein R 3 is as defined above) to react in the presence of a metal alkoxide.

  通过一种生产羧酰胺的方法可以高产率生产羧酰胺，例如，如公式（4）所示的方法：（其中R1和R3如下定义），该方法包括允许由公式（1）表示的羧酸酯（其中R1表示可选取代的C1-C20烃基或可选取代的C3-C20杂环基，R2表示可选取代的C1-C20烃基），由公式（2）表示的胺：R3—NH2（2）（其中R3表示氢原子或可选取代的C1-C20烃基），以及由公式（3）表示的甲酰胺化合物（其中R3如上所定义）在金属烷氧化物存在下反应的步骤。
• 一种α,β-不饱和羧酸酯化合物的制备方法
  申请人：大连理工大学

  公开号：CN105859557B

  公开（公告）日：2018-08-21

  本发明涉及CO2的活化转化及相关化学技术领域，涉及到一种利用CO2作为C1源合成一种α,β‑不饱和羧酸酯的方法。特别是一种基于卤代甲基(杂)芳香烃和三取代基烯丙基硅合成α,β‑不饱和羧酸酯的方法。其特征在于：使用二氧化碳作为C1源，在Pd催化剂催化下实现了卤代甲基(杂)芳香烃和三取代基烯丙基硅的羧化反应。本发明主要是提供一种新的简单的无外加配体的纳米催化体系，利用CO2作为C1源合成α,β‑不饱和羧酸酯，该催化体系具有反应原料绿色易得、反应条件温和、实验操作简单、官能团兼容性好等优点。由于二氧化碳是储量丰富、廉价易得且可再生的C1源，因此，本发明具有较大的应用价值和社会经济效益。
• Mild Preparation of Alkenes from Phenyl Sulfides:  One-Pot Elimination of Phenylthio Group via Sulfilimine at Ambient Temperature
  作者：Jun-ichi Matsuo、Takaaki Kozai、Hiroyuki Ishibashi

  DOI：10.1021/ol062620w

  日期：2006.12.1

  [Structure: see text] Various alkenes were prepared from phenyl sulfides in a one-pot manner at room temperature by converting them to the corresponding S-aminosulfonium salts with O-mesitylenesulfonylhydroxylamine, followed by treatment with potassium carbonate. Alkenes were formed by cis-elimination of in situ generated phenyl sulfilimines.

  [结构：见正文]在室温下，通过一锅法由苯基硫化物制备各种烯烃，方法是将它们用O-亚甲基磺酰基磺酰羟胺转化为相应的S-氨基s盐，然后用碳酸钾处理。通过顺式消除原位生成的苯基亚硫亚胺形成烯烃。