5-ethylisobenzofuran-1,3-dione | 35081-12-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 5-ethylisobenzofuran-1,3-dione
• 英文别名: 5-ethylphthalic acid anhydride；4-ethylphthalic anhydride；4-ethyl-phthalic acid anhydride；4-Aethyl-phthalsaeure-anhydrid；4-Aethyl-phthalsaeureanhydrid；4-Ethyl-phthalsaeureanhydrid；5-Ethyl-2-benzofuran-1,3-dione
• CAS: 35081-12-0
• 化学式: C₁₀H₈O₃
• 分子量: 176.172
• InChiKey: ZFKYZHOZHFVTLZ-UHFFFAOYSA-N

物化性质

• 熔点：
  76-77 °C
• 沸点：
  326.5±21.0 °C(Predicted)
• 密度：
  1.301±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-ethylisobenzofuran-1,3-dione 在 盐酸 作用下， 生成 4-乙基邻苯二甲酸
  参考文献：
  名称：

  The Thermal Isomerization of allo-Ocimene

  摘要：

  DOI：

  10.1021/ja01161a078
• 作为产物：
  描述：

  4-乙基邻苯二甲酸 生成 5-ethylisobenzofuran-1,3-dione
  参考文献：
  名称：

  The Thermal Isomerization of allo-Ocimene

  摘要：

  DOI：

  10.1021/ja01161a078

文献信息

• Oral care compositions with color changing indicator
  申请人：Sabnis W. Ram

  公开号：US20060222601A1

  公开（公告）日：2006-10-05

  The invention describes color changing toothpastes and mouthwashes which contains acid-base indicator(s) for interaction with the oral cavity to provide a color change indicative of treatment time.

  这项发明描述了含有酸碱指示剂的变色牙膏和漱口水，用于与口腔相互作用，以提供治疗时间的颜色变化指示。
• Controlled reduction of aromaticity of alkylated polyaromatic compounds by selective oxidation using H₂WO₄, H₃PO₄ and H₂O₂: a route for upgrading heavy oil fractions
  作者：Ewa Nowicka、Meenakshisundaram Sankar、Robert L. Jenkins、David W. Knight、David J. Willock、Graham J. Hutchings、Manuel Francisco、Stuart H. Taylor

  DOI：10.1039/d1nj01986d

  日期：——

  H2O2 oxidant is applied to the selective oxidation of PAHs containing different lengths of substituent alkylated chain, and different numbers of rings in the fused aromatic core. For a model substrate of 2-ethylnaphthalene, using traditional organic solvents, aliphatic carbon was oxidized more readily compared to aromatic carbon. However, it was found that the oxidation to desired products can be specifically

  形成分馏残余物的重质原油馏分占当前烃储量的很大一部分。然而，用作化学品或燃料的加工残留物受到该材料高多芳烃含量的阻碍。通过有针对性的开环和保留烷基化链侧基来选择性降低芳香性是将烷基化多环芳烃 (PAH) 升级为更容易加工和更高价值的分子的关键要求。在本研究中，H 2 WO 4催化剂与 H 3 PO 4和 H 2 O 2 结合氧化剂用于选择性氧化含有不同长度取代基烷基化链和稠合芳核中不同环数的多环芳烃。对于 2-乙基萘的模型底物，使用传统有机溶剂，与芳族碳相比，脂肪族碳更容易被氧化。然而，发现氧化成所需产物可以特别控制，因为选择性受溶剂选择的指导，在乙腈中进行的反应仅在分子的芳族区域进行氧化。对于较大的聚芳烃分子，双相溶剂系统与 Aliquat 336 一起用作相转移剂。即使对于这种更复杂的反应体系，也获得了向相应烷基化开环化合物的高转化率。
• Selective Oxidation of Alkyl-Substituted Polyaromatics Using Ruthenium-Ion-Catalyzed Oxidation
  作者：Ewa Nowicka、Meenakshisundaram Sankar、Robert L. Jenkins、David W. Knight、David J. Willock、Graham J. Hutchings、Manuel Francisco、Stuart H. Taylor

  DOI：10.1002/chem.201405831

  日期：2015.3.9

  Ruthenium‐ion‐catalyzed oxidation of a range of alkylated polyaromatics has been studied. 2‐Ethylnaphthalene was used as a model substrate, and oxidation can be performed in either a conventional biphasic or in a monophasic solvent system. In either case the reaction rates and product selectivity are identical. The reaction products indicate that the aromatic ring system is oxidized in preference to

  已经研究了钌离子催化的一系列烷基化聚芳族化合物的氧化。使用2-乙基萘作为模型基质，可以在常规的双相或单相溶剂体系中进行氧化。在两种情况下，反应速率和产物选择性都是相同的。反应产物表明，芳族环系优先于烷基链被氧化。由于开发了定量NMR协议来确定脂肪族和芳香族质子的相对量，因此这种分析是可能的。从一组系统的基质中，我们表明，随着多环芳烃上烷基链取代基的长度增加，链保持与芳族系统连接的产物比例也随之增加。基于pyr和菲的较大的多芳烃体系，
• AROMATIC DIAMINE, AN INTERMEDIATE THEREFOR, A METHOD FOR PRODUCING THE AROMATIC DIAMINE, AND A METHOD FOR PRODUCING THE INTERMEDIATE THEREFOR
  申请人：SEIKA CORPORATION

  公开号：US20180072655A1

  公开（公告）日：2018-03-15

  An asymmetric diamine suitable for preparing a soluble polyimide and a method for preparing the same, including a compound represented by the following formula (1): wherein R 1 , R 2 , R 3 and R 4 are, independently of each other, a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkoxy group having 1 to 3 carbon atoms, and A and B are, independently of each other, a nitro group or an amino group. Further, a method for preparing the compound represented by the aforesaid formula (1).

  一种适用于制备可溶性聚酰亚胺的不对称二胺及其制备方法，包括由以下式（1）表示的化合物：其中，R1、R2、R3和R4独立地为氢原子、具有1至6个碳原子的烷基或具有1至3个碳原子的烷氧基，A和B独立地为硝基或氨基。此外，还提供了制备上述式（1）所表示的化合物的方法。
• Personal care compositions with color changing indicator
  申请人：Sabnis W. Ram

  公开号：US20060222675A1

  公开（公告）日：2006-10-05

  The invention describes a composition for use in disinfecting a surface for personal use, such as a public restroom facility or telephone. The composition and delivery of the composition provides for the placement of a thin layer of disinfectant which includes a acid-base indicator. The acid-base indicator disappears as the thin layer effects the germicidal activity of the disinfectant. The composition is also rapidly drying, so that the acid-base indicator disappears as well as the disinfecting composition leaving the surface dry. The invention also relates to use of the compositions in a lotion, such as a sunscreen. Use of the acid-base indicator provides a method to visualize where the lotion is applied by color, with the color then later dissipating.

  本发明描述了一种用于消毒个人使用表面的组合物，例如公共洗手间或电话。该组合物及其输送方式提供了一层薄薄的消毒剂，其中包括酸碱指示剂。随着薄层发挥消毒剂的杀菌活性，酸碱指示剂消失。该组合物也具有快速干燥的特性，因此酸碱指示剂以及消毒剂在表面干燥后也会消失。本发明还涉及将该组合物用于洗涤剂，例如防晒霜。使用酸碱指示剂提供了一种通过颜色可视化涂抹洗涤剂的方法，颜色随后会消失。