1-(4-ethylphenyl)ethyl acetate | 103966-60-5

• 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: 1-(4-ethylphenyl)ethyl acetate
• 英文别名: 1-(α-acetoxyethyl)-4-ethylbenzene；1-acetoxy-1-(4-ethyl-phenyl)-ethane；1-Acetoxy-1-(4-aethyl-phenyl)-aethan
• CAS: 103966-60-5
• 化学式: C₁₂H₁₆O₂
• 分子量: 192.258
• InChiKey: YZPLJVWRJQVHGE-UHFFFAOYSA-N

物化性质

• 沸点：
  253.8±9.0 °C(Predicted)
• 密度：
  0.999±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 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：

  1-(4-ethylphenyl)ethyl acetate 在 甲醇 、 chromium(III) oxide 、 air 、 sodium methylate 、 calcium carbonate 作用下， 生成 1-(4-acetylphenyl)ethanol
  参考文献：
  名称：

  p-Vinylacetophenone: The Disproportionation of p-Acetophenylmethylcarbinol¹

  摘要：

  DOI：

  10.1021/ja01107a520
• 作为产物：
  描述：

  3-(4-ethylphenyl)butan-2-one 在 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 生成 1-(4-ethylphenyl)ethyl acetate
  参考文献：
  名称：

  Baeyer–Villiger monooxygenase-catalyzed kinetic resolution of racemic α-alkyl benzyl ketones: enzymatic synthesis of α-alkyl benzylketones and α-alkyl benzylesters

  摘要：

  The application of three BVMOs for the enantioselective oxidation of 3-phenylbutan-2-ones with different substituents in the aromatic moiety is described. By choosing the appropriate biocatalyst and substrate combination, chiral ketones and esters can be obtained with excellent enantiopurities. This methodology could also be applied to the resolution of racemic alpha-alkyl benzylketones with longer alkyl chains as well as with two substituted alpha-substituted benzylacetones. A kinetic analysis revealed that the BVMOs studied effectively convert all tested compounds showing that the enzymes are tolerant towards the substrate structure while being highly enantioselective. These properties render BVMOs as valuable biocatalysts for the preparation of compounds with high interest in organic synthesis. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.03.018

文献信息

• Activity and specificity studies of the new thermostable esterase EstDZ2
  作者：Kamela Myrtollari、Nikolaos Katsoulakis、Dimitra Zarafeta、Ioannis V. Pavlidis、Georgios Skretas、Ioulia Smonou

  DOI：10.1016/j.bioorg.2020.104214

  日期：2020.11

  In this paper, we study the activity and specificity of EstDZ2, a new thermostable carboxyl esterase of unknown function, which was isolated from a metagenome library from a Russian hot spring. The biocatalytic reaction employing EstDZ2 proved to be an efficient method for the hydrolysis of aryl p-, o- or m-substituted esters of butyric acid and esters of secondary alcohols. Docking studies revealed

  在本文中，我们研究了功能未知的新型热稳定羧基酯酶EstDZ2的活性和特异性，该酶是从俄罗斯温泉的一个基因组库中分离出来的。采用EstDZ2生物催化反应被证明是芳基的水解的有效方法p - ，Ö -或米取代丁酸的酯和仲醇的酯。对接研究揭示了导致不同底物活性差异的酶的结构特征。
• Benzylic-acetoxylation of alkylbenzenes with PhI(OAc)2 in the presence of catalytic amounts of TsNH2 and I2
  作者：Haruka Baba、Katsuhiko Moriyama、Hideo Togo

  DOI：10.1016/j.tetlet.2011.06.036

  日期：2011.8

  Treatment of alkylbenzenes with (diacetoxyiodo)benzene in the presence of catalytic amounts of p-toluenesulfonamide or p-nitrobenzenesulfonamide, and molecular iodine in 1,2-dichloroethane at 60 °C gave the corresponding (α-acetoxy)alkylbenzenes in good to moderate yields. The present reaction is a simple method for the introduction of an acetoxy group to the benzylic position of alkylbenzenes.

  在催化量的对甲苯磺酰胺或对硝基苯磺酰胺的存在下，用（二乙酰氧基碘）苯处理烷基苯，在60°C下于1,2-二氯乙烷中用分子碘制得相应的（α-乙酰氧基）烷基苯。本反应是将乙酰氧基引入烷基苯的苄基位置的简单方法。
• Taming secondary benzylic cations in catalytic asymmetric S _N 1 reactions
  作者：Vikas Kumar Singh、Chendan Zhu、Chandra Kanta De、Markus Leutzsch、Lorenzo Baldinelli、Raja Mitra、Giovanni Bistoni、Benjamin List

  DOI：10.1126/science.adj7007

  日期：2023.10.20

  their selective creation would be asymmetric unimolecular nucleophilic substitution (S N 1) reactions that proceed through highly reactive benzylic cations. We now report a broadly applicable solution to this problem by identifying chiral counteranions that pair with secondary benzylic cations to engage in catalytic asymmetric C−C, C−O, and C−N bond-forming reactions with excellent enantioselectivity

  苄基立体中心在天然产物和药物中普遍存在。选择性创造它们的一种潜在通用但具有挑战性的方法是不对称单分子亲核取代（S氮1) 通过高活性苄基阳离子进行的反应。我们现在报告了一个广泛适用的解决方案，通过识别与仲苄型阳离子配对的手性抗衡阴离子，参与催化不对称 C−C、CO 和 C−N 成键反应，具有优异的对映选择性。关键的阳离子中间体可以通过路易斯酸或布朗斯台德酸催化从不同的前体获得。我们策略的关键是仅使用弱碱性、受限的抗衡阴离子，这些阴离子可以延长碳正离子的寿命，从而避免产生相应苯乙烯的非生产性去质子化途径。