3-(m-tolyl)butanoic acid | 19355-29-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 苯丙酸
• 英文名称: 3-(m-tolyl)butanoic acid
• 英文别名: 3-(3-Methylphenyl)butanoic acid
• CAS: 19355-29-4
• 化学式: C₁₁H₁₄O₂
• 分子量: 178.231
• InChiKey: ZQXKCSVXVSJGNN-UHFFFAOYSA-N

物化性质

• 沸点：
  290.7±9.0 °C(Predicted)
• 密度：
  1.067±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-(m-tolyl)butanoic acid 在 氯化亚砜 作用下， 反应 3.0h， 以4.59 g的产率得到3-(3-methylphenyl)butanoyl chloride
  参考文献：
  名称：

  Lipase catalysed kinetic resolutions of 3-aryl alkanoic acids

  摘要：

  Hydrolase catalysed kinetic resolutions leading to a series of 3-aryl alkanoic acids (>= 94% ee) are described. Hydrolysis of the ethyl esters with a series of hydrolases was undertaken to identify biocatalysts that yield the corresponding acids with excellent enantiopurity in each case. Steric and electronic effects on the efficiency and enantioselectivity of the biocatalytic transformation were also explored. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2010.12.019
• 作为产物：
  描述：

  间碘甲苯 在 水 、 silver(I) acetate 、 palladium diacetate 、 sodium hydroxide 作用下， 以 乙醇 为溶剂， 反应 48.0h， 生成 3-(m-tolyl)butanoic acid
  参考文献：
  名称：

  One-pot, solvent-free Pd(II)-catalyzed direct β-C-H arylation of carboxamides involving anhydrides as substrates via in situ installation of directing group

  摘要：

  A one-pot, multicomponent-type, solvent-free Pd(II)-catalyzed direct beta-C-H activation/arylation of carboxamides involving anhydrides as substrates via in situ installation of directing group (DG) is reported. Typically, the DG-assisted beta-C-H activation/arylation of carboxamides is a two-step process comprising the installation of DG and Pd(II)-catalyzed C-H arylation. We attempted a multicomponent-type reaction comprising an anhydride, a DG (e.g. 8-aminoquinoline), an aryl iodide in the presence of the Pd(II) catalyst and an appropriate additive. Different anhydrides, DGs, aryl iodides, catalysts and additives were screened to reveal the scope of this multicomponent-type C-H arylation reaction process and various beta-C-H arylated carboxamides were obtained in satisfactory to good yields. (C) 2019 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2019.01.042

文献信息

• Ligand‐Controlled Regiodivergence in Nickel‐Catalyzed Hydroarylation and Hydroalkenylation of Alkenyl Carboxylic Acids**
  作者：Zi‐Qi Li、Yue Fu、Ruohan Deng、Van T. Tran、Yang Gao、Peng Liu、Keary M. Engle

  DOI：10.1002/anie.202010840

  日期：2020.12.14

  the ligand environment around the metal center dictates the regiochemical outcome. Markovnikov hydrofunctionalization products are obtained under mild ligand‐free conditions, with up to 99 % yield and >20:1 selectivity. Alternatively, anti‐Markovnikov products can be accessed with a novel 4,4‐disubstituted Pyrox ligand in excellent yield and >20:1 selectivity. Both electronic and steric effects on the

  据报道，镍催化的未活化链烯基羧酸的区域发散性氢芳基化和氢烯基化，从而金属中心周围的配体环境决定了区域化学结果。Markovnikov加氢官能化产物是在无配体的温和条件下获得的，产率高达99％，选择性> 20：1。另外，可以使用新型的4,4-二取代的Pyrox配体获得抗Markovnikov产物，并具有优异的收率和> 20：1的选择性。对配体的电子和空间效应都有助于高产率和选择性。机理研究表明，最佳配体引起的营业额限制和选择性决定步骤发生了变化。DFT计算表明，在反马尔科夫尼科夫途径中，
• POTASSIUM CHANNEL MODULATORS
  申请人：Brown Brian S.

  公开号：US20120289500A1

  公开（公告）日：2012-11-15

  Disclosed herein are KCNQ potassium channels modulators of formula (I) wherein ring G 1 , R 1 , and R 2 are as defined in the specification. Compositions comprising such compounds; and methods for treating conditions and disorders using such compounds and compositions are also described.

  本文披露了式（I）的KCNQ钾通道调节剂，其中环G、R1和R2如规范中所定义。还描述了包含这些化合物的组合物；以及使用这些化合物和组合物治疗疾病和疾病的方法。
• An atom-economic approach to carboxylic acids via Pd-catalyzed direct addition of formic acid to olefins with acetic anhydride as a co-catalyst
  作者：Yang Wang、Wenlong Ren、Yian Shi

  DOI：10.1039/c5ob01180a

  日期：——

  An effective Pd-catalyzed hydrocarboxylation of olefins using formic acid with acetic anhydride as a co-catalyst is described.

  一种利用甲酸和乙酸酐作为共催化剂，通过Pd催化的烯烃水合羧化方法被描述。
• The Use of Co-crystals for the Determination of Absolute Stereochemistry: An Alternative to Salt Formation
  作者：Kevin S. Eccles、Rebecca E. Deasy、László Fábián、Anita R. Maguire、Simon E. Lawrence

  DOI：10.1021/jo102148p

  日期：2011.2.18

  Absolute stereochemistry of oils and viscous liquids can be difficult to determine. Co-crystallization involves generating a crystalline material consisting of more than one neutral compound. The combination of co-crystallization with both X-ray diffraction and chiral HPLC was particularly powerful in overcoming these difficulties for a series of chiral 3-arylbutanoic acids. Co-crystallization offers

  油和粘性液体的绝对立体化学可能难以确定。共结晶涉及产生由一种以上中性化合物组成的结晶材料。X射线衍射和手性HPLC的共结晶组合在克服一系列手性3-芳基丁酸的这些困难方面特别有效。共结晶提供了优于盐形成的优势，因为共结晶在溶液中会解离，这意味着相同的HPLC条件可用于目标物质及其共结晶。
• Ligand-Enabled Pd(II)-Catalyzed β-Methylene C(sp³)–H Arylation of Free Aliphatic Acids
  作者：Liang Hu、Guangrong Meng、Jin-Quan Yu

  DOI：10.1021/jacs.2c09205

  日期：2022.11.16

  has enabled rapid advances in Pd(II)-catalyzed β-methyl C(sp3)–H activation of free carboxylic acids. However, there are only a handful of reports of free-acid-directed β-methylene C(sp3)–H activation, all of which are limited to intramolecular reactions. Herein, we report the first Pd(II)-catalyzed intermolecular β-methylene C(sp3)–H arylation of free aliphatic acids, which is enabled by bidentate pyridine–pyridone

  配体的开发使得 Pd(II) 催化的游离羧酸的β-甲基 C(sp 3 )–H 活化取得了快速进展。然而，关于游离酸引导的β-亚甲基C(sp 3 )–H活化的报道屈指可数，所有这些都仅限于分子内反应。在此，我们报道了第一个 Pd(II) 催化的游离脂肪酸的分子间 β-亚甲基 C(sp 3 )–H 芳基化，这是通过二齿吡啶-吡啶酮配体实现的。已发现该配体的咬角在促进游离羧酸的 β-亚甲基 C-H 活化中发挥关键作用。这种新的转化为芳烃与简单脂肪酸的烷基化提供了断开。多种游离脂肪酸，包括抗哮喘药物塞曲司特，与报道的方案兼容。