4-[(4-Carboxy-3-methylphenyl)methyl]-2-methylbenzoic acid | 341495-08-7

• 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-[(4-Carboxy-3-methylphenyl)methyl]-2-methylbenzoic acid
• CAS: 341495-08-7
• 化学式: C₁₇H₁₆O₄
• 分子量: 284.312
• InChiKey: FZIOQQMHTOOXLD-UHFFFAOYSA-N

物化性质

• 沸点：
  493.0±45.0 °C(Predicted)
• 密度：
  1?+-.0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-[(4-Carboxy-3-methylphenyl)methyl]-2-methylbenzoic acid 在 lithium aluminium tetrahydride 、 硫酸 作用下， 生成 [4-[[4-(Hydroxymethyl)-3-methylphenyl]methyl]-2-methylphenyl]methanol
  参考文献：
  名称：

  Synthesis of 4,4,9,17-tetramethyl-2,6-dithia[7.1]paracyclophane and isolation of atropisomeric forms of the tetraoxide

  摘要：

  DOI：

  10.1021/jo00877a001
• 作为产物：
  描述：

  3,3',4,4'-二苯甲酮四甲酸二酐 在 palladium on activated charcoal 氢气 作用下， 生成 4-[(4-Carboxy-3-methylphenyl)methyl]-2-methylbenzoic acid
  参考文献：
  名称：

  Synthesis of 4,4,9,17-tetramethyl-2,6-dithia[7.1]paracyclophane and isolation of atropisomeric forms of the tetraoxide

  摘要：

  DOI：

  10.1021/jo00877a001

文献信息

• Process for refining 1,3-dimethyl-2-imidazolidinone and a process for preparing an aromatic polyamide by use of the refined product
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0332425A1

  公开（公告）日：1989-09-13

  A refining process for removing impurities from 1,3-dimethyl-2-imidazolidinone (DMI) employs a composite salt containing MgO and/or SiO₂ composition moieties and the DMI to be refined is brought into contact with the salt at a temperature in the range of 5 - 180°C. A process for preparing an aromatic polyamide having a high polymerization degree from an aromatic diisocyanate and an aromatic dicarboxylic acid by using as a reaction solvent, DMI purified by the above-mentioned process.

  一种从 1,3-二甲基-2-咪唑烷酮（DMI）中去除杂质的精制工艺采用了一种含有 MgO 和/或 SiO₂组成分子的复合盐，并在 5 - 180°C 的温度范围内将待精制的 DMI 与该盐接触。用上述工艺提纯的 DMI 作为反应溶剂，用芳香族二异氰酸酯和芳香族二羧酸制备具有高聚合度的芳香族聚酰胺的工艺。
• TREATING AGENT FOR LIQUID CRYSTAL ALIGNMENT LAYER AND LIQUID CRYSTAL DEVICE USING THE SAME, AND METHOD FOR ALIGNMENT OF LIQUID CRYSTAL
  申请人：Nissan Chemical Industries, Ltd.

  公开号：EP1111442A1

  公开（公告）日：2001-06-27

  Object Liquid crystal-alignment agent where uniform liquid alignment of liquid crystals is effectively manifested by the irradiation with light over the liquid crystal alignment film without rubbing treatment of the liquid crystal alignment film thereof, and further manifests liquid crystal alignment with high stability and high light resistance, liquid crystals device with the use of said alignment agent and the method of the liquid crystal alignment by the use of said liquid crystal alignment agent. Constitution Liquid crystal alignment agent where polymer compound having bonds shown in the general formula (1) - (7) below wherein R1, R2 and R3 are independently of each other hydrogen, alkyl, substituted alkyl, aryl or propargyl; in the polymer compound thereof with number-average molecular weight of 1,000 - 300,000, and said bond makes the direct bond with either divalent or trivalent aromatic group at the both ends of said bond or with divalent or trivalent aromatic group making the direct bond at one end while at the other forming the direct bond with divalent or trivalent alicyclic hydrocarbon group, liquid crystal device by the use of said liquid crystal alignment agent and the method of the liquid crystal alignment by the use of said liquid crystal alignment agent.

  目标 无需对液晶对位膜进行摩擦处理，通过对液晶对位膜进行光照射，即可有效实现液晶的均匀液态对位，并进一步实现高稳定性和高耐光性液晶对位的液晶对位剂、使用所述对位剂的液晶装置以及使用所述液晶对位剂的液晶对位方法。 构成 液晶配向剂，其中的聚合物化合物具有以下通式（1）-（7）所示的键 其中 R1、R2 和 R3 相互独立地为氢、烷基、取代烷基、芳基或丙基；在其平均分子量为 1,000 - 300,000 的聚合物化合物中，所述键在所述键的两端与二价或三价芳香族基团直接键合，或在一端与二价或三价芳香族基团直接键合，而在另一端与二价或三价脂环烃基团直接键合，通过使用所述液晶配向剂的液晶装置和通过使用所述液晶配向剂的液晶配向方法。
• Aliphatic-aromatic polyesters, and articles made therefrom
  申请人：E. I. du Pont de Nemours and Company

  公开号：EP2184308A2

  公开（公告）日：2010-05-12

  Sulfonated aliphatic-aromatic polyester compositions having improved thermal properties and biodegradability, and articles such as films, coatings and laminates, produced from the sulfonated aliphatic-aromatic polyester compositions, are provided.

  提供了热性能和生物降解性均有所改善的磺化脂肪族-芳香族聚酯组合物，以及用磺化脂肪族-芳香族聚酯组合物生产的薄膜、涂层和层压板等物品。
• Biodegradable water-sensitive films
  申请人：Kimberly-Clark Worldwide, Inc.

  公开号：EP2363432A1

  公开（公告）日：2011-09-07

  A film that is biodegradable and water-sensitive (e.g., water-soluble, water-dispersible, etc.) in that it loses its integrity over time in the presence of water is provided. The film contains a biodegradable polyester, starch, water-soluble polymer, and plasticizer. The desired water-sensitive attributes of film may be achieved in the present invention by selectively controlling a variety of aspects of the film construction, such as the nature of the components employed, the relative amount of each component, the manner in which the film is formed, and so forth.

  提供了一种可生物降解且对水敏感（如水溶性、水分散性等）的薄膜，这种薄膜在有水的情况下会随着时间的推移而失去其完整性。这种薄膜含有可生物降解的聚酯、淀粉、水溶性聚合物和增塑剂。在本发明中，可以通过选择性地控制薄膜结构的各个方面，如所使用成分的性质、每种成分的相对量、薄膜的形成方式等，来实现薄膜所需的水敏特性。
• Process for preparation of modified polyethylene terphthalate with improved barrier, mechanical and thermal properties and products thereof
  申请人：ESTER INDUSTRIES LIMITED

  公开号：US10174162B2

  公开（公告）日：2019-01-08

  The present invention relates to a copolyester having intrinsic viscosity greater than 0.50 dL/gm, comprises: terephthalate polyester composition; and a modified transparent polybutylene naphthalate, wherein the modified polybutylene naphthalate comprises naphthalene dicarboxylic acid, 1,4-butane diol, and isophthalic acid or monoethylene glycol or diethylene glycol or cyclohexane dimethanol or polyethylene naphthalate, nucleating agent, and a modified nanoclay.

  本发明涉及一种本征粘度大于 0.50 dL/gm，包括：对苯二甲酸酯聚酯组合物；和改性透明聚萘二甲酸丁二醇酯，其中改性聚萘二甲酸丁二醇酯包括萘二羧酸、1,4-丁二醇和间苯二甲酸或单乙二醇或二甘醇或环己烷二甲醇或聚萘二甲酸乙二醇酯、成核剂和改性纳米粘土。