(E)-α-(3'-methoxyphenylmethylene)benzeneacetic acid | 24298-04-2

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (E)-α-(3'-methoxyphenylmethylene)benzeneacetic acid
• 英文别名: (E)-3-(3-methoxyphenyl)-2-phenylacrylic acid；m-Methoxy-α-phenyl-trans-zimtsaeure；3-Methoxy-α-phenyl-trans-zimtsaeure；trans-3-<3-Methoxy-phenyl>-2-phenyl-acrylsaeure；3t-(3-methoxy-phenyl)-2-phenyl-acrylic acid；2-Phenyl-3t-(3-methoxy-phenyl)-acrylsaeure；3t-(3-Methoxy-phenyl)-2-phenyl-acrylsaeure；3-(3-Methoxyphenyl)-2-phenylprop-2-enoic acid；(E)-3-(3-methoxyphenyl)-2-phenylprop-2-enoic acid
• CAS: 24298-04-2
• 化学式: C₁₆H₁₄O₃
• 分子量: 254.285
• InChiKey: NHFFSAQDMSUYHB-RVDMUPIBSA-N

物化性质

• 熔点：
  190-192 °C
• 沸点：
  377.7±27.0 °C(Predicted)
• 密度：
  1.204±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (E)-α-(3'-methoxyphenylmethylene)benzeneacetic acid 在 sodium hydroxide 、 sodium amalgam 、 磷酸 、 phosphorus pentoxide 作用下， 生成 5-methoxy-2-phenyl-2,3-dihydro-1H-inden-1-one
  参考文献：
  名称：

  2-苯基茚满的一些衍生物

  摘要：

  DOI：

  10.1039/jr9540001640
• 作为产物：
  描述：

  间羟基苯甲醛 生成 (E)-α-(3'-methoxyphenylmethylene)benzeneacetic acid
  参考文献：
  名称：

  Perkin-oglialoro反应中的立体特异性。一些取代的α-苯基肉桂酸的立体化学构型

  摘要：

  DOI：

  10.1039/jr9550003445

文献信息

• Palladium-Catalyzed Through-Space C(sp³)H and C(sp²)H Bond Activation by 1,4-Palladium Migration: Efficient Synthesis of [3,4]-Fused Oxindoles
  作者：Tiffany Piou、Ala Bunescu、Qian Wang、Luc Neuville、Jieping Zhu

  DOI：10.1002/anie.201306532

  日期：2013.11.18

  Palladium two step: Linear anilides were converted into the title compounds in good to excellent yields through a palladium‐catalyzed domino carbopalladation/1,4‐palladium shift sequence. The C(sp3)‐H activation involves a seven‐membered palladacycle, and is chemoselective in the presence of competitive C(sp2)H bonds. DMA=N,N‐dimethylacetamide, OPiv=pivalate.

  钯两步法：通过钯催化的多米诺骨牌碳钯/ 1,4-钯移位序列，线性苯甲酸酯以良好至极好的收率转化为标题化合物。C（sp 3）-H激活涉及一个七元的palladacycle，并且在存在竞争性C（sp 2）H键的情况下具有化学选择性。DMA = N，N-二甲基乙酰胺，OPiv =新戊酸酯。
• Reactions of Carbonyl Compounds in Basic Solutions. Part 34. The Mechanism of the Base-Catalysed Ring Fission of 2,3-Diphenylcycloprop-2-en-1-one
  作者：Keith Bowden、Emma J. Burgess

  DOI：10.1135/cccc19991594

  日期：——

  The rate coefficients for the base-catalysed ring fission of a series of 2-phenyl-3-(2-, 3- or 4-substituted phenyl)cycloprop-2-en-1-ones to give the corresponding (E)-2,3-diphenylacrylic acids have been determined in water at 30.0 °C, as well as for the unsubstituted compound at 40.0, 50.0 and 60.0 °C. The effects of meta- and para-substituents on the rates have been correlated using the Hammett equation to give a reaction constant, ρ, equal to ca 1.2 at 30 °C. For the unsubstituted compound, the activation parameters have been calculated and the kinetic solvent isotope effect has been studied. The effects of ortho-substituents on the rates appear to be mainly polar, rather than steric, in origin. The evidence indicates a mechanistic pathway which proceeds by addition of hydroxide anion to the ketone, which is rate-determining. The adduct suffers ring fission to give the final product via a carbanionic intermediate.

  一系列2-苯基-3-(2-, 3- 或 4-取代苯基)环丙烯酮在30.0°C的水中的碱催化环裂速率系数已确定，以及未取代化合物在40.0、50.0和60.0°C的速率系数。利用Hammett方程相关了对速率的间位和对位取代基的影响，得到在30°C时等于约1.2的反应常数ρ。对于未取代化合物，已计算了活化参数并研究了动力学溶剂同位素效应。取代基对速率的影响似乎主要是极性的，而不是立体的。证据表明，该机理途径通过氢氧根离子加成到酮中，这是决定速率的步骤。该加合物经历环裂，生成最终产物，通过一个碳负离子中间体。
• Pd-Catalyzed Dehydrogenative Aryl–Aryl Bond Formation via Double C(sp²)–H Bond Activation: Efficient Synthesis of [3,4]-Fused Oxindoles
  作者：Ala Bunescu、Tiffany Piou、Qian Wang、Jieping Zhu

  DOI：10.1021/ol503442n

  日期：2015.1.16

  A Pd(0)-catalyzed double cyclization of easily available o-bromoanilides leading to strained [3,4]-fused oxindoles was developed. The reaction proceeded through a highly ordered sequence involving key carbopalladation, 1,4-Pd migration, and C(sp2)–H functionalization steps.

  开发了Pd（0）催化的容易获得的邻溴代苯甲酰苯胺的双环化反应，导致应变的[3,4]稠合的吲哚。该反应通过一个高度有序的过程进行，该过程涉及关键的碳pal触，1,4-Pd迁移和C（sp 2）–H官能化步骤。
• Structural requirements for substrate in highly enantioselective hydrogenation over the cinchonidine-modified Pd/C
  作者：Takashi Sugimura、Takayuki Uchida、Junya Watanabe、Takeshi Kubota、Yasuaki Okamoto、Tomonori Misaki、Tadashi Okuyama

  DOI：10.1016/j.jcat.2008.11.022

  日期：2009.2.15

  Relationship between substrate Structure and enantioselectivity is studied for the asymmetric hydrogenation of 42 different (E)-alpha, beta-disubstituted acrylic acids (propenoic acids) over cinchonidine-modified Pd/C. The beta-phenyl group is indispensable for high enantioselectivity of alpha-phenylcinnamic acid (2,3-diphenylpropenoic acid, 81% ee), and substitution on this group affects markedly the selectivity. The high ee up to 92% was achieved by the beta-p-alkoxyphenyl substitution, and the selectivity is ascribed mainly to stronger interaction of the substrate with the chiral modifier on the catalyst surface. In contrast, substitution on the alpha-phenyl group does not affect notably the enantioselectivity (80-82% ee) or even the alpha-phenyl group itself is not indispensable but replaceable with a properly bulky group for the high enantioselectivity, (C) 2008 Elsevier Inc. All rights reserved.
• 390. Experiments relating to œstrogenic indenes
  作者：D. S. Morris

  DOI：10.1039/jr9500001913

  日期：——