2-(2-羟基-4,5-二甲基苯基)-4,5-二甲基苯酚 | 62156-67-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-(2-羟基-4,5-二甲基苯基)-4,5-二甲基苯酚
• 英文名称: 4,5,4',5'-Tetramethyl-biphenyl-2,2'-diol
• 英文别名: 2,2'-Dihydroxy-4,4',5,5'-tetramethylbiphenyl；4,4',5,5'-Tetramethyl[1,1'-biphenyl]-2,2'-diol；2-(2-hydroxy-4,5-dimethylphenyl)-4,5-dimethylphenol
• CAS: 62156-67-6
• 化学式: C₁₆H₁₈O₂
• 分子量: 242.318
• InChiKey: BTSQPRJGKXLUJC-UHFFFAOYSA-N

物化性质

• 熔点：
  152 °C(Solv: benzene (71-43-2); cyclohexane (110-82-7))
• 沸点：
  373.6±37.0 °C(Predicted)
• 密度：
  1.118±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(2-羟基-4,5-二甲基苯基)-4,5-二甲基苯酚 在 phosphorous (V) sulfide 作用下， 生成 2,3,7,8-tetramethyldibenzo[b,d]thiophene
  参考文献：
  名称：

  565.高沸点石油馏分的成分。第五部分：科威特石油中的某些缩合噻吩衍生物

  摘要：

  DOI：

  10.1039/jr9590002813
• 作为产物：
  描述：

  2-甲氧基-4,5-二甲基苯胺 在 硫酸 、 氢碘酸 、 铜 、 溶剂黄146 、 sodium nitrite 作用下， 生成 2-(2-羟基-4,5-二甲基苯基)-4,5-二甲基苯酚
  参考文献：
  名称：

  565.高沸点石油馏分的成分。第五部分：科威特石油中的某些缩合噻吩衍生物

  摘要：

  DOI：

  10.1039/jr9590002813

文献信息

• Blue‐LED Synthesis of Pummerer's Ketones by Peroxidase‐Lignin‐Catalyzed Oxidative Coupling of Substituted Phenols
  作者：Davide Piccinino、Natalia Ceccotti Vlas、Sofia Gabellone、Eliana Capecchi、Raffaele Saladino

  DOI：10.1002/ejoc.202300356

  日期：2023.8.21

  Horseradish peroxidase activated by hydroperoxide of 2-MeTHF catalyzes the synthesis of Pummerer's Ketones under blue-LED Photon irradiation in the presence of meso-TPP. Lignin nanoparticles worked as an electroactive platform in improving the activity of the enzyme.

  辣根过氧化物酶被 2-MeTHF 的氢过氧化物激活，在内消旋-TPP存在下，在蓝色 LED 光子照射下催化普默勒酮的合成。木质素纳米粒子作为电活性平台来提高酶的活性。
• POLYMERIZATION OF VINYL CHLORIDE
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0462284A1

  公开（公告）日：1991-12-27

  An improved process for the homo- and copolymerization of vinyl chloride, wherein the inner wall of a polymeriser and those parts of the apparatus which come into contact with the monomer during polymerization are coated with a special coating agent. This agent comprises an aqueous solution of a modified condensate of phenol with aldehyde and has a specified pH value such that it dissolves at a coating temperature and precipitates said condensate when heated on the inner wall of the polymerizer or the like. Since this agent forms a uniform and tough thin film on the inner wall of the polymerizer and the like, it has an excellent effect of inhibiting adhesion of a polymer.

  一种改进的氯乙烯均聚和共聚工艺，其中聚合器内壁和聚合过程中与单体接触的部分涂有特殊的涂层剂。这种涂层剂由苯酚与醛的改性缩合物的水溶液组成，具有特定的 pH 值，在涂层温度下溶解，在聚合器内壁或类似装置上加热时析出上述缩合物。由于该剂可在聚合器内壁等处形成一层均匀而坚韧的薄膜，因此在抑制聚合物附着方面效果极佳。
• Polymer scale deposition preventive agent
  申请人：SHIN-ETSU CHEMICAL CO., LTD.

  公开号：EP0712866A1

  公开（公告）日：1996-05-22

  A polymer scale deposition preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkali metal salt and/or ammonium salt of a sulfonation product of a condensate comprising (A) an aromatic amine compound and (B) an aldehyde compound as essential condensation components. Deposition of polymer scale in a polymerization vessel can be effectively prevented, not only on the areas in the liquid-phase region but also on the areas around the interface between the gas phase and the liquid phase. Products such as sheets formed from the polymeric product have very few fish eyes, and have very little initial discoloration, and therefore are of high quality. The use of the agent makes it unnecessary to remove polymer scale for every polymerization run, thereby improving productivity.

  一种用于具有乙烯不饱和双键的单体聚合的聚合物鳞片沉积防止剂，包括碱金属盐和/或铵盐，其磺化产物为由(A)芳香胺化合物和(B)醛化合物组成的缩合物的重要缩合组分。可以有效防止聚合物垢在聚合容器中的沉积，不仅是在液相区域，而且在气相和液相界面周围区域。由聚合产品形成的板材等产品很少有鱼眼，初始褪色也很少，因此质量很高。使用该制剂后，每次聚合都无需清除聚合物垢，从而提高了生产率。
• Vinyl chloride polymer
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：EP0805168A1

  公开（公告）日：1997-11-05

  In a process for producing vinyl chloride polymers including polymerization of vinyl chloride or a monomer mixture containing it in an aqueous medium using a polymerization initiator, the polymerization is carried out in the presence of a chelating agent. The chelating agent is capable of chelating iron (II) and iron (III). This process makes it possible to prevent polymer scales from adhering to, e.g. baffle surfaces facing inner walls of the polymerization vessel, which has been hitherto difficult to do so, and less cause initial discoloration of polymer products to improve quality. It is more effective to use a polymerization vessel previously provided with coating films of a polymer scale preventive agent on the inner walls of the polymerization vessel and the other portions with which monomers come into contact in the course of polymerization.

  在生产氯乙烯聚合物的工艺中，包括使用聚合引发剂在水介质中聚合氯乙烯或含有氯乙烯的单体混合物，聚合是在有螯合剂存在的情况下进行的。螯合剂能够螯合铁（II）和铁（III）。这种工艺可以防止聚合物鳞片附着在聚合容器内壁的挡板等表面上（迄今为止很难做到这一点），减少聚合物产品的初始变色，从而提高质量。在聚合容器内壁和聚合过程中单体与之接触的其他部分上涂覆一层聚合物防垢剂的聚合容器更为有效。
• Polymerisation of vinyl cloride
  申请人：MITSUI TOATSU CHEMICALS, INCORPORATED

  公开号：EP0821014A2

  公开（公告）日：1998-01-28

  In a novel method of homo- or copolymerization of vinyl chloride, a specified coating agent is applied on the surfaces of the portions which will become into contact with the vinyl chloride monomer during the polymerization process. The coating agent is in a form of an aqueous solution of a modified condensation product of phenol and aldehyde, the pH of the solution being adjusted in a range that the product is dissolved at an ambient temperature upon coating of the solution and separates out of the solution upon being heated on the surfaces. The wall surface of the polymerization tank and the like is then coated with a thin film of the coating agent having a uniform thickness and being strongly adhered to the wall surface, thereby providing an excellent effect of preventing adhesion of the product polymer to the wall surface.

  在一种新颖的氯乙烯均聚或共聚方法中，在聚合过程中会与氯乙烯单体接触的部分表面涂上特定的涂层剂。涂层剂的形式是苯酚和醛的改性缩合产物的水溶液，溶液的 pH 值调节在一定范围内，使该产物在涂覆溶液时在环境温度下溶解，并在表面加热时从溶液中分离出来。然后，在聚合罐等的壁面上涂覆一层厚度均匀的涂层剂薄膜，该薄膜牢固地附着在壁面上，从而起到防止产品聚合物附着在壁面上的良好效果。